Hi! My ISP (SIPproviderA) also gives me 2 phone numbers via VoIP. One ends with 2 and the other with 3. My asterisk server (192.168.1.3 - it is behind a NAT and a SIP-ALG) registered both numbers with SIPproviderA. I try to use the computer, that also runs the asterisk server, for simulating two…

T.38 forbidden by my ISP?

david551 October 22, 2017, 4:29pm 4

It is generally advised that SIP-ALG should be disabled when using Asterisk.

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