NetModule NB3700 User Manual page 131

Parameter
SIP interface
SIP port
SIP user name
SIP register expires
In case you are running multiple WWAN interfaces sharing the same SIM, please bear
in mind that the system may switch SIMs during operation which will also result in
different settings for voice communication.
NB3700 User Manual 3.8
Voice Gateway Administration Settings
Specifies the interface (LAN or WAN) on which the agent
should listen for incoming calls
Specifies the agent's listening port
Specifies the username used in from headers
Specifies the registration interval in seconds
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