Task
Configuring SIP server keepalive and backup
Configuring SIP routing
Configuring user information
Configuring outbound SIP proxy server information for a SIP UA
Configuring transport layer protocol for SIP calls
Configuring SIP
extensions
Configuring VRF-aware SIP
Configuring SIP UA registration
UAs function to register and to initiate session requests or make responses.
A UA registers with the registrar by sending a REGISTER request containing such information as
address, route, and number. Therefore, when it is called by some other UA through a proxy server,
the proxy server can consult the registrar for its registration information.
The basic functions that a UA must have are the ability to initiate session requests as a caller and the
ability to make responses as a callee. After a user attached to a UA-supported router working as UA
dials a number, the router sends a session request to the called UA as a caller either directly or
through one or more proxy servers.
Configuration prerequisites
The configuration at the server end is completed.
Configuring call failure-triggered re-registration
Configuring fuzzy telephone number registration
Enabling SIP registration function
Strict SIP routing
Configuring out-of-band SIP DTMF transmission mode
Configuring source IP address binding for SIP messages
Configuring a domain name for the SIP UA
Configuring SIP compatibility
Configuring user-agent and server header fields
Configuring SIP extensions for caller identity and privacy
Configuring call release cause code mapping
Configuring periodic refresh of SIP sessions
Enabling early media negotiation
139
Remarks
Optional.
Optional.
Required.
Optional.
Required.
Optional.
Optional.
Required when TCP
or TLS is specified
as the transport
layer protocol.
The feature is
enabled by default,
and requires no
configuration.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
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