ATCOM A2SV Series Quick Start Manual page 13

A2SV Series Quick Start Guide
Account, then input the phone account information
6.4 Precautions for the SIP and VoLTE dual-mode models
1) When the phone makes a call, the default is to use the VoLTE mode.
If you need to switch the SIP mode, you can press the navigation left and right
buttons to switch the default call mode or press the Line button to select the SIP
account and make the call.
2) When the phone is in a call, there is a new incoming call, you can press Hold button
to hold the current call and then answer the new call.
After hanging up the new call, press Hold to resume the current call.
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