01-12-2018 05:13 AM
I recently setup a ER-PRO with a PBX residing on my local network . My ISP hands off a SIP Peers using a local network internal to them as well. Initially, i was unable to register the SIP peer, after doing a SNAT, DNAT rules and adjusting the SIP ALG (based on suggestions on forums). I was able to ping their SIP peer. Incoming calls working fine.
However, I am unable to get outgoing calls from the phones. Any assistance will be greatly appreciated.
01-12-2018 07:37 AM
I'm not quite sure what this means:
" My ISP hands off a SIP Peers using a local network internal to them as well."
What do you mean by 'hands off' and what does
'internal to them as well' mean? This almost
sounds like a VPN strategy of some kind.
Typically a SIP phone or PBX registers to an ISP
server to acquire a SIP trunk. You have to open
some ports in the router to permit traffic. Can you
provide more details or an example of what your
ISP requires? Dave
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