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    This is a list of SIP Phone Service Providers in Canada. Also check out VoIP Providers Canada to see VoIP service providers in Canada.

    ClearSwitch - ClearSwitch provides SIP trunks to major corporations in North America. Pay-as-you-go payment structure, DID's available in over 7000 ratecenters, guaranteed Premium US/Canada routing, Premium international routes, multiple North American servers, crystal clear connections. Superior solution for softphone, Fring, etc.

    • VCCS Telecom - SIP Canada and Business VoIP Solutions including; SIP Trunks and DIDs in Canada and the United States. Also check out our Wholesale, Carrier and Call Center SIP Termination. Located in Montreal, serving globally!

    Net2Phone Net2Phone offers high quality, low cost SIP Trunking and Business VoIP Solutions - no charge per channel, no contracts, pay only for the minutes you use.

    Hosted Business Telephone Systems by Taridium - Taridium Canada offers fully featured hosted business telephone systems for small, medium and large enterprises. Taridium also offers Hosted PBX Software for Service Providers.

    VoIP Innovations VoIP Innovations is a Wholesale VoIP Services Provider, interconnected with the industry's top telecommunications carriers. VoIP Innovations provides high quality and low cost VoIP services to ITSPs and resellers through our unique industry leading BackOffice, Titanium III. Titanium III provides you with online access to the industry's largest footprint and number warehouse.

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  • 05/08/15--09:05: Hosted VoIP
  • Hosted VoIP is another term for Hosted PBX. "Hosted" means to say that the hardware and PBX is hosted at an off-site location from where the VoIP telephone service is being used. An office can have VoIP telephone service that powers their phones in the office, but their PBX could be hosted at their VoIP providers data center, thus the term: hosted VoIP.

    Benefits of Hosted VoIP

    There are many benefits to using Hosted VoIP rather than a traditional phone system, or an on-premise VoIP system. The main benefit is cost- a Hosted VoIP system costs much less to set-up than an on-premise PBX. In many cases, there are no set-up fees for a hosted VoIP system. Hosted VoIP phone systems fall under operational expenditure rather than capital expenditure, which also make hosted VoIP systems attractive to businesses.

    Another benefit to a hosted VoIP system over an on-premise PBX is that hosted VoIP providers will take care of all the set-up and installation, meaning you do not need to be a telecom or VoIP expert in order to get hosted VoIP.

    Hosted VoIP Service Providers

    Please list hosted VoIP service providers below in alphabetical order.

    1Pipe Telecom | OnePipe is a licensed carrier providing Hosted PBX and SIP Trunking in over 50 countries. We have regional network facilities spread across the globe.
    • Actual US CLEC
    • Branded customer portals
    • Multiple geographic locations on one Hosted PBX
    • Coverage in over 50 countries
    • Unlimited inbound on each channel
    • Great for inbound call centers
    • No fee's per extension

    C3 Communications is a hosted pbx provider with plans starting at $9.95 a month including unlimited local and long distance calling within the US. 99.999% up time combined with full unified communications features like mobility applications, auto attendant, web/desktop call management, etc. Pre-configured Polycom and Aastra phones are shipped to your business ready to be plugged in for use. 24x7 support is located in the US and included in monthly cost.

    iPBeX Hosted Telephony is your Managed Hosted Telephony and Business SMS solution. We'll setup your Hosted VoIP PBX and ship out configured VoIP phones for a plug and play installation. Based in Brooklyn, NY servicing the NYC Tri-State area with Cloud Services extending coast to coast; targeting small to medium sized businesses.

    Cloud Telephony Features ::

    :: Custom Call Routing - We can send calls to Extensions, Hunt / Ring groups, IVR / Auto Attendants, Call Queues and / or externally via Call Confirm with unconfirmed calls routing to your extension's voicemail.

    :: Cloud Fax - Send a fax from anywhere, with a cover page right from our Cloud Portal. Inbound faxes are sent to email or your Fax Inbox in Adobe PDF format.

    :: Call Blocker - Easily block or redirect inbound calls. Play a "number disconnected" msg, send to voicemail or simply hang up.

    :: Skype Integrated - Route calls to Skype with our Skype extensions, (handy for traveling abroad). Place outbound calls from Skype showing your Business's Caller ID.

    :: Geographic Redundancy - Our network stretches coast to coast. We'll keep you up and running when disaster strikes.

    :: Business Texting / SMS - Send texts to a single client or a group of recipients, right from your email or our Cloud Portal. Create word or phrase based auto repliers, schedule automated SMS messages (appointment reminders), create contact groups and more.

    :: Responsive Website - Access our Cloud Portal from iPads, iPhones, Android Smartphones / Tablets and Blackberry 10 devices.

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  • 05/08/15--09:42: Virtual PBX providers
  • Virtual BPX is a service offering functionality of a PBX without the need to install switching equipment at the customer location. Only VOIP phones need to be installed at the customer site. This makes supporting distributed workers very easy as each requires only and internet connection and a VOIP phone. A business virtual PBX phone system can reduce your monthly phone bill significantly compared to a traditional business phone system.

    List of Virtual PBX Providers


    1Pipe Telecom | OnePipe is a licensed carrier providing Hosted PBX and SIP Trunking in over 50 countries. We have regional network facilities spread across the globe.
    • Actual US CLEC
    • Branded customer portals
    • Multiple geographic locations on one Hosted PBX
    • Coverage in over 50 countries
    • Unlimited inbound on each channel
    • Great for inbound call centers
    • No fee's per user or extension

    Arrrowtel - Increase efficiency with a Cloud VoIP solution. Our rates are competitive, our attention to detail borders on the obsessive. No-charge, on-site installation.

    .e4PBX - Hosted and premise based solution available. SIP / SMS / API - Hit live support for a demo and free test account.

    Callagenix - Hosted numbers and services, virtual pbx and Business VoIP services. UK based, Ofcom registered SS7 carrier. Also provide a fixed rate, all-inclusive VoIP package - VoIP Inclusive. Contact number: +44 (0) 333 247 0000

    Cordia Brasil - Porta Brasil atendendo clientes brasileiros com serviços virtuais na nuvem.
    • PABX Virtual com 1.000 minutos para celular ou fixo apenas R$99/mês por ramal
    • VoIP ilimitado Brasil para telefones fixos apenas R$49/mês
    • Números Virtuais de 50 países
    • URA, filas de atendimento, salas de conferências e outros benefícios gratuitos


    A hosted Virtual PBX ready for Service Providers and ISPs. Full of features and functions. IPX does is an independent Platform provider providing solutions to Service Providers and ISPs.

    Features of Cloud PBX :-

    • IVR / Auto Attendant
    • Call Conference
    • Call Transfer
    • Call Forward
    • Call Divert
    • Call Follow-me
    • Voicemail / Voicemail to email notification
    • Inbound DID Numbers
    • Ring Groups and many more..

    Broadcast many calls at one time to reach all your recipients to send then the voice message. Easy to use and manage. Comes with Reports.

    Used in Industries :-

    • Dept Payment Reminder
    • Emergency Alert Notification
    • Sales Campaign
    • Realty Sales Campaign
    • School notification
    • Political Campaign
    • Survey and many more...

    This is a Multi-tenanted, Multi-Products Billing Platform which is also hosted. ...

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    Add your entry here (Alphabetical order by country and company):
    This page is growing large. Please don't post logos!!

    Box Internet Services

    IPBX Asterisk solutions, SIP Trunking, Hosting and Internet Solutions

    Av. Pictet-de-Rochemont 29
    1207 Geneva
    Voice: +41 22 735 97 40

    A Enterprise GmbH

    Migrating Voice over IP, convergent data solutions, full CTI featuring
    Nordstrasse 168
    8037 Zurich
    Telephone: +41 44 350 03 28
    ENUM: +882 9999 956900

    Alliera AG

    Consulting services in automated survey and feedback systems integrating voice mobile messaging and web technologies.

    Suedstrasse 18a
    8952 Schlieren
    Voice: +41 43 311 6166

    Asterisk Schweiz

    Consulting, Installation, Support and Customer Application Development.Worldwide Remote Support. ...

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  • 05/11/15--10:40:
  • sm_voipsupply_fb.GIF

    About is the retail website of North America's leading VoIP solutions provider, VoIP Supply. offers a fast and easy way to find the VoIP hardware you are looking for. has products for consumers, small medium businesses, enterprises, government/educational entities, resellers and service providers. You can visit Here.

    About VoIP Supply

    VoIP Supply is North America's leading VoIP solutions provider. Since 2004, VoIP Supply has delivered valuable solutions for some 60,000 customers worldwide.

    With over 30 passionate employees, 2,500 products, 40,000 square feet of office space and an unlimited number of VoIP solutions to meet your needs VoIP Supply has everything you need for VoIP, whether you are a consumer, business, service provider or reseller. Offerings specializes in standards based VoIP equipment and VoIP systems. In addition to complete VoIP systems, VoIP Supply offers:

    Your Favorite VoIP Manufacturers

    VoIP Supply makes it easy for you to find products from your favorite manufacturers.

    For your convenience, some popular manufacturer categories include:

    • VoIP Headsets for Polycom Phones - Take the guesswork out of figuring out which VoIP headset pairs perfectly with your Polycom Phone
    • Cisco VoIP Phones - Save money on long distance charges and transfer calls to anyone at any location with Cisco VoIP phones. Deploy a phone system anywhere you have broadband Internet access
    • Grandstream SIP Video Phones - Grandstream SIP Video phones offer Skype certified compatibility, multiple SIP account support and up to a 7" color LCD display

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    Flavien is one of the leading voip wholesale telecommunication service provider with A-Z terminations and an unmatched voice traffic carrier across the globe. Flavien international corporation was founded by a group of business and telecommunication network professionals with years of industrial experience , incorporated in USA with national telecom operators and best voip companies around the world as our partners.

    Our technical department is able to receive any information regarding quality related topics by the introduction of specially designed QoS (Quality of Services) monitoring system . Flavien's relationship with international telecom operators and eminent voip providers helps us to deliver quality at its best . We offer stable and secure interconnection in H.323 and SIP protocols for VoIP peering.

    Our vision is to make an identity in international VoIP industry by developing direct routes to high traffic market. Flavien strives to provide its clients with best in class VoIP service at competitive prices . Flaviens interconnections with direct carriers makes us to stick on to our mission that is "to deliver quality at its best " . we are with the sole objective to run our business in VoIP traffic transition and peering service.

    Below are our Top Destinations :

    • Pakistan ,
    • India ,
    • China,
    • Bangladesh ,
    • Ethiopia ,
    • Egypt ,
    • Thailand ,
    • Afghanistan ,
    • Nepal ,
    • Saudi ,
    • Cuba ,
    • Kenya ...etc

    For these need stable and FAS FREE routes. The payment terms are negotiable. Get hurry to contact with me and reply back with Rate Billing terms and other requirements. Early response will be highly appreciated.

    Thanks & Regards

    Vishnu Prasad
    Carrier Relations Manager

    Flavien International Corp.
    5820 North Cage Blvd, Suite No:22, Pharr Texas. 78577
    Office : USA:+19566888098, INDIA:+914844054550, +919747461100
    Fax : +1 9562234611
    Email :
    Skype : vishnu.prasad_5
    website :

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  • 05/11/15--22:35: Asterisk news and blogs
  • This page is a collection of Asterisk-based news sites and blogs.

    Daily news

    Blogs on Asterisk

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  • 05/12/15--03:35: WombatDialer
  • WombatDialer is a platform to provide mass outbound calling on the Asterisk PBX.

    This can be used to implement many different services that fall under the umbrella definition of Proactive Customer Care. By offering you a set of ready-to-use components and a monitoring GUI, you can create complex solution in minutes.

    Typical usage scenarios include:

    • Queue call-backs: allow callers to leave their numbers instead of waiting on a queue, and then being calls them back
    • Web-based contact-us forms: allow customers to be called back by using a web form
    • Automated surveys / Reverse IVRs: call a list of numbers and gather information that is entered as DTMF
    • Number verification services: automatically check the validity of phone numbers
    • Telecasting of pre-recorded message: send pre-recorded messages to thousands of recipients quickly and efficiently
    • Automated appointment reminders: remind and take appointments, with our without human interventions
    • Automated subscription expiration: automatically call expiring subscriptions, and have clients renew their subscription
    • Automated quality surveys: run quality/performance interviews and feed them back into the QueueMetrics QA module
    • Generic progressive dialing: keep your outbound agents busy by having a dialer compose numbers, handle retries and pre-qualify leads. WombatDialer includes a powerful preview mode with APIs and a web panel.

    WombatDialer can work on pre-defined call lists or can dynamically create them over an API (e.g., dial number X after 10:30 AM). It shares the load on one or more PBX servers and has a flexible rescheduling logic to handle missed calls. It is built to be used with your existing Asterisk PBX and does not require separate servers or a separate set of lines. It can call over VoIP or through the public telephone network. It can also act as a power-dialer for a set of agents logged in in Asterisk, using a number of flexible dialing modes.

    WombatDialer is built to integrate with your business processes, and can receive calls to be made over HTTP and/or notify an external system in real-time of calls made and results gathered. You can also choose to be notified by e-mail of campaign statuses and results.

    WombatDialer works natively with the QueueMetrics Call-Center Monitoring Suite in order to produce state-of-the-art campaign analyses and insight.

    WombatDialer is currently available as a commercial product, but it is free to use for smaller systems, telephony hackers and Asterisk enthusiasts.
    The current version is 0.9.0 as of May 2015. It is available in .tar.gz, RPM and Docker formats.

    See also:

    Release notes

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  • 05/12/15--05:54: VOIP PBX and Servers
  • Please list information about VoIP PBX and Servers on this page. Please keep VoIP PBX and server provider information in alphabetical order, and below any other relevant information.

    Page Contents


    • Asterisk-based converged telephone system for UK Businesses
    • 1GATE VoIP PBX by Wangate: Cheap VoIP PBX with hardware DSP. Optional internal gateways for Analog/ISDN/PRI/GSM. VoIP resellers welcome.
    • 2daydirect: Brand NEW Small Business VoIP phones. Free 2 day shipping anywhere in the United States
    • 2N NETSTAR PBX, virtual PBX: VoIP PBX system
    • 2N Omega IP PBX: VoIP PBX system
    • 2N VoiceBlue Enterprise: Simple VoIP SIP PBX
    • 3CX: Windows IP PBX / VOIP Phone system
    • 4PSA VoipNow: Hosted PBX software for service providers and enterprises, accelerating SaaS deployment. It runs on Linux environments (RHEL, SuSE Linux, CentOS, Fedora) on x86 and Power PC architecture based servers.
    • 8ix Zenith: 8ix Zenith spells an Asterisk derived IP Telephony application with the most advanced calling and communication features.


    • ALLO PSTN-IPPBX for SOHO with 30 IP extension, upto 6 Analog Extension & upto 4 PSTN trunk
    • ActivePBX™ | Turn-Key Business Phone System $149/mo.

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  • 05/12/15--08:21: Zycoo
  • logo 320pixels.png

    ZYCOO is the leading developer of IP telephony devices and related systems, has devoted itself over the past seven years to researching and developing powerful and scalable voice over IP (VoIP) solutions, specifically for SMBs. VoIP transmits voice data via the Internet, as opposed to the public switched telephone network, thus making each individual call considerably less expensive. These savings add up quickly, which, as mentioned, can be a godsend for a small business. Combined with an extensive built-in feature list rivaling the biggest contact centers, VoIP can propel SMB growth to unforeseen heights.

    ZYCOO's current product line includes business IP Phone systems (ranging from a 2 port to a 24 port), hardware appliance, cloud telephony management system and IP desk phones, all designed for the SMB environment. The company also offers many types of embedded hardware boards for original design manufacturers (ODM) looking to incorporate these devices into their own solutions and distribution offerings. Most importantly, all of these devices and services are offered at prices commensurate with the purchasing power of SMBs.
    Such businesses have indeed taken note; ZYCOO's products and solutions are currently being used in more than 85 countries and regions around the world. Furthermore, ZYCOO was the winner of both INTERNET TELEPHONY magazine's Product of the Year award and TMC's Communication Solutions Product of the Year award for many years, and Best of Show in ITEXPO Miami 2014. ZYCOO is willing to adopt flexible ways to partner with more friends to serve SMBs all over the world.

    Our mission: We focus on our commitments to deliver innovative unified communication solutions worldwide.



    • CooVox Series IP Phone System
      • ZYCOO CooVox-U20 2 ports Analog(FXO/FXS/FXOS), support lifeline and LTE data tranporation
      • ZYCOO CooVox-U50 4-8 ports Analog(FXO/FXS/FXOS/GSM) or Digital(4BRI/ 1PRI) trunk, support plug&play, LTE data transportation
      • ZYCOO CooVox-U60 24 ports Analog(FXO/FXS/FXOS), support lifeline, LTE data transportation
      • ZYCOO CooVox-U100 4-8 ports Analog(FXO/FXS/FXOS/GSM) or Digital(4BRI/ 1PRI) trunk combination, support plug&play, hot standby

    • UC Series IP Office for SOHO
      • ZYCOO UC510 IP PBX with Wi-Fi Router Based on Asterisk
      • ZYCOO UC520 IP PBX with Wi-Fi Router Based on Asterisk, Support LTE by default.

    • P Series Hardware Appliance
      • ZYCOO P0 Intel Atom CPU and Gigabit Network Interfaces; For Pure SIP Asterisk-based Phone System
      • ZYCOO P1 Intel Atom CPU and Gigabit Network Interfaces; One Telephony Module Available (Analog(FXO/FXS/FXOS/GSM) or Digital(BRI/PRI)) for VoIP Software as Elastix or Firewall Software like Untangle and pfSense.
      • ZYCOO P2 Intel Atom CPU and Gigabit Network Interfaces; Two Telephony Module Available (Analog(FXO/FXS/FXOS/GSM) or Digital(BRI/PRI)) for VoIP Software as Elastix or Firewall Software like Untangle and pfSense. ...

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  • 05/12/15--11:20: Houston VoIP
  • This is a list of VoIP providers in Houston. Houston VoIP companies typically support multi-line telephone systems, small gateways and hosted VoIP. Please add VoIP Providers in Houston to the list below.

    • c2mtech c2mtech is a full service VoIP and traditional telephone installation and services provider. Providing on premise hybrid and standalone VoIP options from Samsung, Toshiba and ESI as well as hosted VoIP contracts, c2mtech can truly install VoIP specific to your business needs.
    • FluentStream Technologies FluentStream Technologies is a fantastic Cloud-hosted business phone system. We have a best-in-class web portal, an industry-leading WebRTC-based FluentCloud WebPhone, and world class 24x7x365 support. Get all the benefits of the cloud with service that you'll love!
    • SIPSRUS SIPSRUS provides cloud computing based business phone and fax systems designed for today's mobile and distributed business world. SIPSRUS provides services in USA, Canada, UK, Australia, Japan, Spain, India, UAE and many more!
    • Trinicom Communications - Trinicom is a Houston based VoIP services provider for business with our own redundant data center in Houston and can service customers worldwide. We can provide IAX2 trunks, SIP trunks, Hosted / Cloud PBX services, Data Internet / Fiber connections and Asterisk on Premise PBX's.
    • Jive Communications - Jive offers Houston VoIP services business.
    • Lantelligence is an International provider of Business Communications solutions that include IP Phone Systems, Call Centers, Video and Web Conferencing services for multi-location corporations.
    • ConfCentral offers flat fee conferencing with local access number in the USA
    • ActiveServe PBX Hosting 3CX, Asterisk, Elastix, and Trixbox PBX Hosting. CAT-5 Data Center, Active NAT Assistance™, Fully Managed Cisco Network, Cloud Platform. Eczema Cure No hardware or software to purchase or maintain. 24/7/365 Support. Do-It-Yourself or Turn-Key
    • Connect Me Voice offers a full line of services from basic voicemail to full business systems
    • Digivoix is saving tons of money on all your internet telephony needs, Hosted phone services start at $34.95 (Unlimited Local and Long Distance calling), SIP Trunking starting at $12.95 (Unlimited incoming, 1.6 cents outgoing (US)),

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  • 05/12/15--12:53: Synchronous ICT

  • About Synchronous ICT

    Founded in 2004, Synchronous ICT, is a software developer company in VoIP Telecommunication sector. Synchronous provide high quality software solution and world class services that make it manageable and profitable for VoIP service provider. Synchronous ICT is an award winning and ISO certified company, developed some best quality and globally recognized software solutions in respective fields such as SBO (Synchronous Bandwidth Optimizer), SyncSwitch and CoolDialer, which helps consumers to successfully implement and run a termination business. More information about Synchronous ICT is available at


      • SBO
      • SyncSwitch
      • CoolDialer


    Synchronous Bandwidth Optimizer, generally known as SBO, it is a bandwidth solution for termination business. SBO decrease operating cost in 3 different ways. First one, by reduce transmission cost directly more than 80%. Secondly, by allowing termination business with public or share internet connection and finally by allowing multiple internet connection at a time to balance network load among available networks.

    Some important features of SBO:

    1. The most important feature of SBO is, it can reduce bandwidth cost directly by 80% without degrading service quality.
    2. SBO works with any type of firewall and has capacity to avoid blockage issue. That means, it has anti-block feature.
    3. Work with all commonly used codes such as G.729, G.723 etc.
    4. Multipath: SBO multipath allow you to use number of internet connection same time. These connections can be used simultaneously for your VoIP termination establishment which can balance load among available networks and it develop service quality expectedly.
    5. Highly secure and linux based software.
    6. Full featured billing platform SyncSwitch is integrated with SBO. It help you to check CDR, ACD, add or remove clients.
    7. Work as third party software.
    8. Increase Average Call Duration (ACD) by 2-3 minutes;
    9. Works with both real IP and local IP. That means it is not mandatory to arrange real ip. Public or share ip is enough to run your business.
    10. Technical support is available 24/7 (265). Our support team is highly experienced and skilled.


    The SyncSwitch is an asterisk based carrier-grade soft switch with the functionality of convertibility from VoIP to TDM (Interfacing with physical Switches).SyncSwitch is a complete switching and billing platform for IP based telecommunication service providers. ...

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  • 05/13/15--09:18: Asterisk consultants EMEA
  • 0 0

    Add your entry here (Alphabetical order by country and company):
    This page is growing large. Please don't post logos!!

    • customizable pbx turnkey solution - pbx
    • VoIP consultancy and research
    • pbx and soft-switch developement and integration
    • callcentre desing and implementation

    epbx Headquarters
    Gotthelfstrasse 102, 4054 Basel, Switzerland
    phone: +41 615115014

    epbx Czech office
    V Haji 1214/13, 170 00 Prague 7, Czech republic
    phone: +420 226517511

    Daktela s.r.o. - Voipobchod

    • Design, Installation, and Maintenance of Asterisk PBX systems, legacy integration
    • VoIP consultancy services
    • Reseller of Digium BeroNet Sipura Polycom Sangoma Junghanns.NET VoiSmart QueueMetrics and others
    • Opensource and Free Software system integration and solutions (Email solutions, Centralized Authentication, Network design, Security)
    • Navrhy celkoveho reseni VoIP infrastruktury
    • Sluzby pro Asterisk PBX
    • Konzultacni sluzby pro VoIP
    • Specializovany e-obchod pro Vase VoIP reseni
    • Billingová řešení pro Asterisk
    • Řešení pro CallCentra
    • Školící centrum pro VoIP a Asterisk PBX

    IPEX, a.s.

    • Navrhy reseni VoIP infrastruktury
    • Terminace
    • Konzultacni sluzby pro VoIP

    4CONSULT, s.r.o.

    Leading company at creating PBX systems based on Asterisk in Czech Republic. We provide to our customers consultancy services in field of VoIP technology-design and creation VoIP systems(PBX,CRM, IVR etc. ), maintanace, training. Reseller Sangoma, Digium cards.
    E-shop dedicated to VoIP hardware-telephones, cards, PBX, complete customized sollutions.
    Diky nasi modularni strukture systemu nabizime reseni pro firmy jakekoliv velikosti a pozadavku.

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  • 05/13/15--15:03:
  • Welcome to the VOIP Wiki - a reference guide to all things VOIP.

    This Wiki covers everything related to VOIP, software, hardware, VoIP service providers, reviews, configurations, standards, tips and tricks and everything else related to voice over IP networks, IP telephony and Internet Telephony.

    Your contributions are welcome, please read the How to add information to this wiki page and the Posting Guidelinesbefore you post.


    News Resources

    Getting Started

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  • 05/13/15--22:38: Sip Trunking Providers
  • This page is a list of SIP trunking providers around the world. Please keep this list in alphabetical order. SIP providers looking to add their services can do so in the list below.

    Country specific pages:

    Zoom Soft is worldwide SIP Trunking Service Provider and Dedicated Server provider. With 24/7 services we always try to give our best services for client. Our services are given below:

    ALTOTELECOMVoIP provider for business and Call Centers - AltoTelecom is VoIP company that provides SIP Trunking services for Call Centers, hotels, small and large business using a PBX or an Asterisk based predictive dialer such as Vicidial or Goautodial for telemarketing sales, rates under 1 cent per minute to USA, Canada and UK

    1comms VoIP provider for UK Businesses. Sip trunk services, UK DDI's and Asterisk Support for business users and resellers. White Label fully itemized per second billing.

    1Pipe Telecom | OnePipe is a licensed carrier providing Hosted PBX and SIP Trunking in over 50 countries. We have regional network facilities spread across the globe.
    • Actual US CLEC
    • Branded customer portals
    • Multiple geographic locations on one Hosted PBX
    • Coverage in over 50 countries
    • Unlimited inbound on each channel
    • Great for inbound call centers
    • No fee's per user or extension

    Incorpus TeleNetworks One stop solution for all your voip needs. DIDs, Tollfree, SIP trunking, WHite label reseller, Private label resellers. Class5 sofswitches, Class 6 softswitches, Carriergrade softswitches all with one time installation and monthly rental plans available. email at for more information.

    2 - Tel2 - Feature-rich VoIP provider with FREE signup and UK DIDs. Offer a host of services including call recording, web and video conferencing and collaboration services, faxmail (+ T.38 passthru), locate me, Smartphone and Desktop Apps and more. We offer all UK landline and tollfree numbers. Suitable for all users from residential, business through to large call centres. Wholesale and reseller programs and a white label 'Telco in the Cloud' product available. Lowest Rates. Save with calling bundle rates of 0.6p for landlines, 2p for Mobiles. 40+ countries at 1p/min. Build your own Telco in the cloud under your own branding and set your own rates and create your own calling plans and bundles using our fully automated web portals.

    Aloha Connect Part of the Aloha Telecommunications Group, a UK National operator. Aloha Connect provides a simple platform to provision a prepaid Free SIP trunk with options to purchase DIDs (numbers) from over 50 countries. ...

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  • 05/13/15--22:40: SIP
  • SIP, the session initiation protocol, is the IETF protocol for VOIP and other text and multimedia sessions, like instant messaging, video, online games and other services.

    Abstract from the RFC 3261 (formatted_and_explained version) - SIP: Session Initiation Protocol

    This document describes Session Initiation Protocol (SIP), an application-layer control (signaling) protocol for creating, modifying, and terminating sessions with one or more participants. These sessions include Internet telephone calls, multimedia distribution, and multimedia conferences.

    SIP invitations used to create sessions carry session descriptions that allow participants to agree on a set of compatible media types. SIP makes use of elements called proxy servers to help route requests to the user's current location, authenticate and authorize users for services, implement provider call-routing policies, and provide features to users. SIP also provides a registration function that allows users to upload their current locations for use by proxy servers. SIP runs on top of several different transport protocols.

    SIP is very much like HTTP, the Web protocol, or SMTP. Messages consist of headers and a message body. SIP message bodies for phone calls are defined in SDP -the session description protocol.

    • SIP is a text-based protocol that uses UTF-8 encoding
    • SIP uses port 5060 both for UDP and TCP. SIP may use other transports

    SIP offers all potentialities of the common Internet Telephony features like:
    • call or media transfer
    • call conference
    • call hold

    Since SIP is a flexible protocol, it is possible to add more features and keep downward interoperability.

    SIP also does suffer from NAT or firewall restrictions. (Refer to NAT and VOIP)

    SIP can be regarded as the enabler protocol for telephony and voice over IP (VoIP) services. The following features of SIP play a major role in the enablement of IP telephony and VoIP:

    • Name Translation and User Location: Ensuring that the call reaches the called party wherever they are located. Carrying out any mapping of descriptive information to location information. Ensuring that details of the nature of the call (Session) are supported.
    • Feature Negotiation: This allows the group involved in a call (this may be a multi-party call) to agree on the features supported recognizing that not all the parties can support the same level of features. For example video may or may not be supported; as any form of MIME type is supported by SIP, there is plenty of scope for negotiation.
    • Call Participant Management: During a call a participant can bring other users onto the call or cancel connections to other users. In addition, users could be transferred or placed on hold.
    • Call feature changes: A user should be able to change the call characteristics during the course of the call. For example, a call may have been set up as 'voice-only', but in the course of the call, the users may need to enable a video function. A third party joining a call may require different features to be enabled in order to participate in the call
    • Media negotiation: The inherent SIP mechanisms that enable negotiation of the media used in a call, enable selection of the appropriate codec for establishing a call between the various devices. This way, less advanced devices can participate in the call, provided the appropriate codec is selected.

    The SIP protocol

    The SIP protocol defines several methods. ...

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    iSpeaker C20

    The SIP based audio system iSpeaker C20 utilizes the built-in intercom and paging capability already inherent in most modern IP PBX systems and enhances this to improve end user experience by providing a dedicated high performance digital amplifier on which to broadcast announcements or play background music.

    Basic Features
    Support G.711,G.722,G.723,G.726,G.729 audio codecs;
    Support SIP2.0 (3621)and related RFC protocol;
    Support Power over Ethernet(PoE)
    The DSP integrated echo cancellation and noise suppression. If special or higher requirement for voice quality is required then ZYCOO hardware echo cancellation module is an excellent choice.
    Easy management and configuration from Web interface.
    Support encrypted communication;
    Online update of software.

    Contact us:

    ZYCOO China
    Tel: +86 (28) 85337096
    Address: 7F, B7, Tianfu Software Park, Chengdu, China.

    Tel: +971 (4) 3798839
    Address: #305, Al Riffa Plaza Bldg., Khalid Bin Alwaleed RD, DUBAI, UAE

    LS21, Armstrong House, First Avenue, Robin Hood Airport, Doncaster, UK (DN93GA)


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