IP trunks between two different PBX?

[rfpup]

Hi to all,
Is there any effort proved from you for connecting two different PBX-es (from different providers) using IP trunks between them? Any good result?
Thank you

 

[NX01]

What are the manufacturers?

In the future everything will work...

 

[lopes1211]

If each PBX supports QSIG, you can get name/number and a lot of private network features like a single shared vmail system over IP trunks.

-CL

 

[teltek35674]

QSIG is the best way of doing it but if you just need a few paths you may be able to get E&M cards for your routers. I have done the E&M option to a switch in the Dominican on a PBX that I have no idea what the manufacture is but it has been working for a few years now. But you may need a older phone guy that can remember what a E&M circuit is.