Aastra's SIP phones have multiline appearances and support functions like busy lamp fields and shared lines. They also have an XML API for application development and there are lots of free 3rd party applications available.
Aastra also has a couple of small business appliances that are powered by Asterisk and Microsoft.
Aastra also has a couple of small business appliances that are powered by Asterisk and Microsoft.
SIP Phones
The CT models include a cordless phone along with the base phone.- 67xxi Wallmount Bracket - Wall mount bracket which allows for simple and efficient installation of multiple models of Aastra IP phones.
- 6735i - 5 line text display - 6 softkeys, 6 programmable keys, gigabit ethernet
- 6737i - Dual 5 line text display, 12 softkeys, gigabit ethernet
- 6739i - Color graphical display, resistive touch screen
- 6757i - Dual 5 line text display, 12 softkeys
- 6757i CT - Includes cordless handset (North America / Australia / New Zealand only)
- 6755i - 5 line text display - 6 softkeys, 6 programmable keys
- 6753i - 3 line text display - programmable buttons
- 6751i - lobby phone
- 6731i **New entry level phone
- 6730i Similar to 6731i except no support for PoE and only 1 ethernet port.
- 9480i - 5 line text display, 6 softkeys
- 9480i CT - Includes cordless handset (North America / Australia / New Zealand only)
- 9143i - 3 line text display, programmable keys
Expansion Modules
Up to 3 expansion modules are supported without extra external power supply.- M670i (previously 536M) - For the 53i, 55i, 57i, 57i CT and 39i. Provides 36 additional keys with LED status display. ...