QUESTION SIP URI dialing between 2 PBX on the same LAN?

[paulnye]

I have 2 PBXs on my LAN. Is there a way I can dial with SIP URI from one PBX to the other using LAN IP, like [email protected] and it would call ext200 on PBX2 ? Then maybe I can add a virtual extension 200 on PBX1 that dials the SIP URI for ext200 on PBX2 ? Im thinking this is less complicated than trying to connect the 2 PBX together by trunks

 

[paulnye]

Is is possible for an extension to fwd to a SIP URI ?

 

[paulnye]

Spot on lgaetz, thanks

 

[billsimon]

I think it is easier and safer to connect them by trunks.

You set up a simple SIP trunk on each one with nothing more than

host= the other's IP address
type=peer

no username, password, etc. They then "authenticate" each other by IP address. You don't need to allow SIP guests or anonymous.

Now you can dial between them, hitting the from-trunk context (so from one PBX you could dial DIDs [inbound routes] on the other). Here's a nice trick. If you are fully in control of both PBXes and they should trust each other, use

context=from-internal

on those trunk definitions. ( WARNING - don't do this on gateways or anywhere else - WARNING! )

Now you can route calls directly to the internal context on the opposite PBX. Just set up outbound routes on each that will go to the other PBX by way of the trunk.