Grandstream 3rd party SIP on 9100

[conxtel]

Has anybody used the Grandstream DP750 base with the DP720 handset on the 9100?

I cannot seem to get it to register. I left the SIP registrar port default at 5070 and assigned a personal index in 15-05-27 and entered a user ID and password in 84-22 but the unit will not register.

I have one NEC IP phone and it came up without issue and I have two 5111 licenses, one active, one available. Not sure where I am going wrong.

 

[Daniel_RO]

I have a few grandstream WP825 WiFi phones (not IP DECT) running on a 9100 CP10. I went the easy approach to get this done.

PC Pro, Filter Options, IP Phones, Tick box for Port to be turned into IP Phone
15-05 - 16 - Set Auth Password, 18 - IP Duplication Allowed on

In Phone, set ServerIP as PBX IP:5070, username as extension, password as 15-05-16

All being good and right in the world, this should just work.