How to Keep the panel Off Hook until it gets the Kiss- Off

[#1]

Issue

Panel hangs up before it hears the Modem IIIa² ACK tone.

Solution

In phone number programming, enter a C after the phone number to add 3 seconds to make the panel wait an additional 3 seconds.

Part numbers D7212, D7412, D9112, D9412, D7412G, D9412G, D7412GV2, D9412GV2, D7412GV3, D9412GV3, D7412GV4, D9412GV4, B8512G, B9512G