[OpenSIPS-Users] Trunking Calls Onward

[Adrian Georgescu]

You can use a different port if you setup DNS domains for each  
destination trunk:

customer.domain.com

and add SRV records for each of them that contain the custom port  
number.

Then you use that domain in the hostname part of the ENUM mapping.

Adrian


On May 1, 2010, at 11:19 AM, Andreas Sikkema wrote:

> On May 1, 2010, at 9:05 AM, Adrian Georgescu wrote:
>
>> On Sat, 2010-05-01 at 16:28 +0930, Mike O'Connor wrote:
>>> I have a need to forward calls onward for a range of DID's, but the
>>> other end is not going to Register. I think this is called trunking.
>>>
>>> I need to be able to configure the DID's and the ip/port there  
>>> being on
>>> forwarded too.
>>> What methods should I use to do this ?
>
>> You could use ENUM to translate SIP URIs to a particular outside peer
>> and use trusted peers table to match incoming calls.
>>
>> Then you only need to add ENUM numbers in your DNS database and  
>> trusted
>> peers in your proxy database, no need to configure much in OpenSIPS
>> beside doing ENUM lookup and checking the trusted table.
>
> Using ENUM and Trusted Peers as Adrian sugests is definitely the  
> easiest way to create a trunk but I have run into one minor problem,  
> it will only work if the destination of the ENUM mapping is  
> listening on port 5060. I haven't been able to find a way to make  
> custom ports work, but that might be something to do with myself  ;-)
>
> Current meaning of trunking appears to be more than 1 simultaneous  
> call to/from one single destination, I've seen hard/software require  
> authentication and other hard/software absolutely refuse to do  
> authentication wrt trunking and everything in between.
>
> -- 
> Andreas
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