Connection: CSTA Phase III / HTTP Aastra 800
Driver required: None
Firewall ports required: TCP: 7001 (default) HTTP: 80 TCP: 7001 (default)
Firmware version required:
(for new installations)
Connection requirements: An Open CSTA 100 license is required
Other notes:
Directory download: Extensions and trunks


The Aastra 800 is a VoIP telephone system. It works with SIP handsets, primarily the Aastra handsets. The functionality depends on the handset model.

Go Connect Server Installation Notes

None at this time.


The handset model is very important to the functionality. The 6773 IP and 6775 IP offer the best functionality. Other models do not support features such as Answer and Hold.