Copyright
VBuzzer™
., 2017
Although port 5060 (the default SIP port) should work fine for most
… to avoid
issues with some routers and SIP ALG, we recommend using the following
port values:
Local SIP port:
25060
Local RTP port:
25004
To prevent your ATA device from receiving direct IP calls (calls not originating
through VoIP Much), set the following option to Yes:
Allow Incoming SIP Messages from SIP Proxy Only = Yes