SIP server forwarding

Question

I have many SIP servers, but none of them have an external network. Can I use a server with an external network to proxy many SIP servers without an external network

I'm not an expert on this topic, so I can't provide an answer, but I would suggest you look into the concept of a 'Reverse Proxy' for SIP Servers - it seems there's information on this around the web. — Ethan McTague, Feb 24 '21 at 05:05

score 0 · Answer 1 · answered Feb 24 '21 at 13:42

0

This is called a SBC Session-Border-Controller. Have a nice day.

answered Feb 24 '21 at 13:42

tomrtc

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score 0 · Accepted Answer · edited Feb 25 '21 at 18:12

Yep, you can.

Try using opensips or asterisk as a proxy to redirect calls to nat endpoints. What you’re trying to do is basically how sip providers work

Example: Proxy example

User A is your NAT SIP Servers, Proxy is NAT/External SIP Server and B is PSTN Gateway or PSTN/SIP Provider

In case you have no idea how to get started, here is a useful article, it covers devices but we can consider that devices and servers are endpoints, so the article is for you: Using SIP Devices behind NAT

SIP server forwarding

2 Answers2