SIP Timers T1, B, and F are used to determine mainly how long it takes for the remote device to respond before the sender considers it a timeout. 32 seconds is a very common number to see for things for … Read More
Press the REDIAL button. You can then select the number you wish to redial and then press the DIAL button, lift the handset, press the speakerphone or headset button to start the call.
At any time, you can change between handset, speakerphone, and headset by pressing the appropriate button. Note that if the handset is placed on the phone during a call, the call will be terminated unless the speakerphone or headset button … Read More