Please find the preferred grandstream configuration for the SIP Deskphone.
Step 1: Go to the grandstream configuration page for the http://[DESKPHONE_IP]/account/accts/general, eg. http://10.64.26.43/account/accts/general
Step 2: Login using credentials
Step 3: Change the following settings for each deskphone user
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) |
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