I have a Grandstream 4108 Gateway running Program 1.0.1.25
Can someone tell me more about what this setting does? The manual says: "This is an extremely important setting to make sure incoming PSTN calls are picked up and forwarded to the correct VOIP destination."
Is this taking the place of of having the phone company roll the line over to VOIP when the line is busy or is this something else totally?
I've noticed that if I don't have a phone number in this setting that I'm not able to make the phone work but I don't understand exactly what this setting is doing.
Member Since:
2009-02-17