Accessing "REST-Contacts" from Horizontal Key within Call

[sorvani (Jared Busch)]

@jposhea This post from 2017 says not available.

Sangoma S500 Address Book XML

Hi, We have a few Sangoma S500 phones that have to be configured to use a non FreePBX SIP server. Everything works, and is easy to figure out, with the exception of details of what format to use for the XML address book that the phones can be set to use on the “Auto Provision” page. I’ve searched but can’t find anything on what the phone expects this XML file to look like. Are there any details out there?