Hi Everyone,
I recently installed a Grandstream DP750 and two DP720 handsets. I am unable to get call waiting to work. I have followed all the documentation I can find and I believe everything is configured correctly. Regardless, every time a second call comes through, the second handset rings and the one in use does not receive any sort of incoming call notification (visual or audio). At this point I only have one SIP account configured to keep things simple and did a full reset before I configured the setup.
I have two questions:
#1 – Does anyone have call waiting working on the DP750? If yes what is your firmware version?
#2 – Does anyone have any idea what it could be? (This is my first Grandstream device.)
Thanks!
Here is some configuration info:
DP750
Firmware: 1.0.2.16 (latest)
DECT –-> SIP Account settings:
Handset mode: Shared
PROFILES → Call Settings
Enable call features: Yes
Disable Call Waiting Caller ID: No
Disable Call Waiting Caller ID: No
Disable Visual MWI: No
DP720
Firmware: 1.0.2.16 (latest)
Call waiting enabled.
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