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appointed phone.
z No answer: If there is no answer, incoming calls will be forwarded to
the appointed phone.
z Always: Incoming calls will be forwarded to the appoint phone
directly.
The phone will Prompt the incoming while doing forward.
Forward Phone
Number
Appoint your forward phone number.
Server Type Select the special type of server which is encrypted, or has some unique
requirements or call flows.
DTMF Mode Select DTMF sending mode, there are three modes:
z DTMF_RELAY
z DTMF_RFC2833
z DTMF_SIP_INFO
Different VoIP Service providers may provide different modes.
RFC Protocol
Edition
Select SIP protocol version to adapt for the SIP server which uses the
same version as you select. For example, if the server is CISCO5300,
you need to change to RFC2543, else phone may not cancel call
normally. System uses RFC3261 as default.
Transport Protocol Set transport protocols, TCP or UDP.
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