Method for switching servers of SIP (Session Initiation Protocol) communication terminal
A communication terminal and server technology, applied in the field of switching servers, can solve the problems that the terminal cannot be judged, the device cannot send a logout message, cannot register, etc., and achieves the effect of ensuring continuous availability
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[0027] The following examples are further explanations and illustrations of the present invention, and do not constitute any limitation to the present invention.
[0028] refer to figure 1 , the method for SIP communication terminal switching server of the present invention, this method comprises the following steps:
[0029] In step S1, the registration message is sent to the SIP server through the switching device 10, if no message reply is received, the message is automatically retransmitted according to the transaction retransmission timer, wherein the SIP server is any known network voice communication server, The transaction retransmission timer is set according to the transaction retransmission mechanism defined by the SIP protocol. The switching device 10 can have various forms, such as data uplink can use PON, ADSL, LAN as the uplink interface of VOIP data, and the product form can be 1 / 24 FE ports+1 / 24 telephone interfaces. exist figure 2 , image 3 In the illus...
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