Creating a SIP tie line from ShoreTel 8 to Inter-tel version 7

[breidinger]

Does anyone know or has tried to create a sip tie line with a Inter-Tel System?

[Jlorenz]

Does anyone know or has tried to create a sip tie line with a Inter-Tel System?

This should not be an issue at all,

Make sure you set Extension and Tandem Trunk in the SIP trunk Group, establish this as any other Tie, aka OSE, and so on.

I do believe there is a App note on a basic SIP tie on line, if you have an enterprise contract log in and search for SIP, if not you will need your Partner to get this for you.