controlling resources used by IP phone

[materwey]

Looking for documentation or insight into how I can control which TDM resources are used when an IP phone places a call. If this is generally not possible or recommended, is there a way to tightly control for test call purposes?

[mcginp]

You can do this with network regions

[mlombardi1]

mcginp is right. This is an old document, but still the best I've seen on the subject: https://downloads.avaya.com/css/P8/documents/100011997