Transfer External Caller and ID T48G

[keffa]

To get this to work properly your PBX and ALL your T48's must be in sync when it comes to the caller ID source. So if your PBX sends the caller ID as a RPID first, thats the option that must be selected in your T48's caller ID option in the settings. However its best to use PAI. RPID is not SIP RFC compliant.

If your using asterisk (Most likely with the FreePBX webgui) then go to "Settings > Advanced Settings" in the menu at the top and find the option that says "SIP sendrpid". Insure this says "PAI".

Then under each of your extensions, find the "sendrpid" option and make sure it says "Send P-Asserted-Identity header". It should do this already for new extensions by default.

Finally go into each and every one of the T48's phones web interface in your office and under "Account > Advanced" find the Caller ID source option and make sure it says "PAI-RPID-FROM".