First look at the GHP611 and GHP621. On your first login into the web interface, after you type admin in user field, it gives you a code to press into the phone. After typing code it prompts you to change password. I like that since I can barely see the printed password on the phone.
No issues adding to GDMS. Both needed a firmware update for full GDMS support.
Phones do not come with power adapter. The handsets have a magnetic hook switch.
There are some codes you can dial from the phone to hear IP address, **474# will broadcast your IPv4 IP
You can change IP from phone with *47(IP)# I think we should have the ability to disable this, I have not found a way yet or at least have to add a password. A few of the functions do require a password, like factory reset *37(keypad password)#
All the built in IVR Button Functions can be found in the ghp6xx user guide.
Clicking the revel button does not show the keypad password, just shows more ****** but you can set to whatever you want it to be.
