[asterisk-users] Sending Calls via SIP trunk from several different IP addresses from same Asterisk Machine, to the same destination IP

[Glenn Geller (VDOPh)]

Hi,

Usually, the trunk provider(s) provide a mechanism to support this, and
it's the "Tech Prefix" or just "Prefix".

So, for Tenant 1, send 12348005551212 and for Tenant 2, send 56788005551212.

They'll then strip the prefix, and send along to 8005551212

Most trunk providers worth anything will support this type of termination.

Hope this helps,

*Glenn @ VDO*


On Wed, May 25, 2016 at 2:13 PM, Attila Megyeri <amegyeri at minerva-soft.com>
wrote:

> Hi!
>
>
>
> I would like to reopen a discussion that I saw a couple of years ago, with
> the subject  “Sending Calls via SIP trunk from two different IP addresses
> from same Asterisk Machine”
>
>
>
> The use case is simpe: There are providers that want to see a separate
> source IP address for each of their customers SIP trunks. Now, if we have
> an asterisk box with several customers, we have a problem.
>
>
>
> Does anyone have experience in this topic? How could we send outgoing
> calls (to the same destination IP) from different source IPs depending on
> the caller ID (Based on From: field, sip account, preferred-identity,
> whatever).
>
>
>
> I was thinking about some Kamailio, or SBC that would take the calls from
> asterisk using a user/pass authentication on a single interface, and
> initiate calls from a dedicated IP address for each customer.
>
> Any better idea?
>
>
>
> Thanks
>
>
>
> Attila
>
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