235
Figure 617 Configuring signal process
3. Configure signaling parameters for SIP-to-SIP connections as described in Table 230.
Table 230 Configuration items
Item Description
Call-forwarding Signal
• Remote process—The SIP trunk device transparently
transfers the SIP messages carrying call forwarding
information to the endpoints, and the endpoints perform the
call forwarding.
• Local process—The SIP trunk device processes the SIP
messages carrying call forwarding information locally.
By default, the
Remote
option is selected.
Call-transfer Signal
• Remote process—The SIP trunk device transparently
transfers the SIP messages carrying call transfer information
to the endpoints, and the endpoints perform the call transfer.
• Local process—The SIP trunk device processes the SIP
messages carrying call transfer information locally.
By default, the
Remote
option is selected.
Mid-call Signal
• Remote process—If the session timer mechanism is
initiated by the calling party, and the called party also
supports this mechanism, you can select this option to
enable the called party to process the session update
information. Otherwise, the session timer mechanism only
works between the calling party and the SIP trunk device.
The interval for sending session update requests is
negotiated by endpoints. For more information, see RFC
4028.
• Local process—The SIP trunk device processes the update
messages rather than transparently pass them to the peer
end.
By default, the
Local
option is selected.
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