User can register two sip servers:
Public sip server and private sip server.these two sip servers are independent from each other
and running in the same time.
For how to configure private sip server. Please refer to
SIP_Config
Digital Map
Digit map is a set of rules to determine when the user has finished dialing.
IP Phone support below digital map:
Digital Map is based on some rules to judge when user end their dialing and send the number to the
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