Please find the preferred Grandstream 2160PGRP2601P configuration for the SIP Deskphone.
...
Settings | Parameter | Change To |
|---|---|---|
Accounts > General Settings | Nat Traversal | Keep Alive |
Use SBC | True (Checked) | |
Accounts > SIP Settings | Enable OPTIONS Keep-Alive | True (Checked) |
Registration Expiration | 3600 | |
Accounts > Codec Settings | Selected | Only PCMA |
Symmetric RTP | True (Checked) | |
RTP Timeout | 60 | |
Phone Settings > General Settings | Local RTP Port | 10046 (Greater than 10,000) |
Use Random Port | False (Unchecked) |
Video Tutorial
...