Making Outgoing call using GV - sometimes they can't hear me (FIXED)
RonR:
TCP and UDP are trasnsport protocols, whereas RTP is a service protocol.
RTP service protocol uses UDP transport protocol. In cases where you aren't sure whether to specify TCP or UDP, it's usually safe to select Both.
Tack:
Will forward all.
Thanks.
pennywaltz:
thanks, port forwarding fixed my problem. weird the many months I had obihai never had an issue till now
RonR:
I unconditionally forward SIP and RTP ports as well as use a STUN server in all VoIP installations simply to avoid problems arising at a later date. If you don't, you will in all likelihood experience issues at some point.
earthtoobi:
what i noticed is that when i use google voice, the port number range for the trunk is not followed.
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