Hello, sir, I also have a grandsteam gxp2160 but I can't install it, can you help me to show you how to do from the beginning? because there are so many wires and I don't know where to put those wires. Thank you for your cooperation. Greetings from Holland.
Is there a way to enable the touch-tone sound while dialing without using handsfree mode? I can hear the keystrokes if you are in a handsfree mode, but not the other time.
Is it possible to add a programmable line key or multi-purpose key to connect the phone to an analog trunk on an FXO port? And I don’t mean using a dial pattern.
