VOIP Setting (R7121-L1/R7141-L1/R7111-L1)
SIP is a request-response protocol, dealing with requests from clients and responses from servers.
Participants are identified by SIP URLs. Requests can be sent through any transport protocol. SIP
determines the end system to be used for the session, the communication media and media parameters,
and the called party's desire to engage in the communication. Once these are assured, SIP establishes call
parameters at either end of the communication, and handles call transfer and termination.
SIP Setting
Phone
Phone book
PSTN Line (R7141-L1 only)
R7121-L1
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