[Serusers] Is SER doc PSTN Gateway example incomplete/incompatible with Asterisk?

[Stefan Sayer]

Hello,

Frank Durda IV wrote:
> Stefan Sayer wrote:
>> Hello again,
>>
>> I think I understand well your network setup now ;)
>>
>> mhomed=yes
>> (general config option), then it will detect on which interface to send
>> out the message.
> 
> mhomed=yes  was the final missing bit, and now packets emitted from
> any interface from SER have a reasonable sender IP address in the
> packet and payload.  This got a call from the SIP phone to the PSTN
> switch and got a call established (no audio), so 80 points there.
> 
> It is an interesting question as to why that isn't the default or
> at least included in the samples, as it should be harmless on a
> system with only one interface but would avoid confusion if a system
> had two or more interfaces, even if one was purely for managament
> and the other for all SIP/VOIP related communications.

I guess it is a performance issue - there is a little performance 
penalty introduced, as it needs to open a socket for every outgoing 
message just to see which socket to use.
If you look at ser-oob.cfg mhomed=yes is there (but greyed out).

> 
> 
> Now we shall puzzle as to why mediaproxy doesn't seem to have done
> anything, with the SIP phone and PSTN gateway still trying to send
> RTP packets direct to one another, something that doesn't work as the
> two networks don't meet.   We will go off and ponder why
> the proxy addresses didn't get patched into the SIP messages.
good luck!

Stefan
> 
> Thanks again to all who responded!
> 
> Frank
> 

-- 
Stefan Sayer
VoIP Services

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