Aastra 9xxxi

Follow general Aastra instructions.

Note: In addition, you have to go to Global Sip settings then scroll to Advanced Sip Settings in the Aastra web admin and enable "Send Line Number in REGISTER Message".

Advanced SIP settings


See our top business VoIP phone recommendations

Download the 2017 Business Phone Guide

Was this article helpful?
0 out of 0 found this helpful