Outbound Proxy and Proxy Server for SIP
Hi, what is the difference between an outbound proxy and a proxy server for SIP?
Why are there 2 fields required for connection sometimes?
I'm asking because my voip provider has provided me sip trunking 20 lines. They have said the outbound proxy needs to be a certain proxy, then the proxy server to be another one.
It seems the calls have issues if the outbound proxy is set differently or not set at all. I experienced call drop outs and difficulty in registration.
Can the provider do that?
Why are there 2 fields required for connection sometimes?
I'm asking because my voip provider has provided me sip trunking 20 lines. They have said the outbound proxy needs to be a certain proxy, then the proxy server to be another one.
It seems the calls have issues if the outbound proxy is set differently or not set at all. I experienced call drop outs and difficulty in registration.
Can the provider do that?
Who is Participating?
Both of them are not in the LAN. So I guess the reason why the Outbound Proxy is used in this instance is for policing purposes. I know for a fact that the number of SIP messages to the Outbound Proxy is being controlled and if there's too many, the IP will be blocked for a good ten minutes.
Also, one thing I noticed is that this provider gives back an Unauthorised 404 each time the first invite goes.
Any idea what this is?
Also, one thing I noticed is that this provider gives back an Unauthorised 404 each time the first invite goes.
Any idea what this is?
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It is itself a proxy server. Proxy servers in general pass SIP requests on and return responses in a way like SIP routers. HTH.