Method for realizing simulation service of public telephone exchange net

Abstract

This invention discloses a method for realizing simulation service of public phone exchange nets including: A, a POTS terminal is endowed with a service property, B, the PSTN service control unit initiates corresponding trigger event subscribing request to the applied service property to send SIP message to said POTS terminal, C, a SIP user proxy node receives and analyzes the SIP message to establish a subscribing example of said trigger event packet, D, the node receives the trigger signals described by the packet to send SIP information to the PSTN service control unit, E, the control unit analyzes said SIP message and triggers said applied service property of the POTS terminal, in which, after a POTS terminal is accessed to a packet core net using the SIP as the call control signaling, it can still use the PSTN simulation service.

Description

technical field

[0001] The invention relates to the communication field, in particular to a method for realizing simulation services of a public telephone switching network. Background technique

[0002] At present, with the continuous maturity of packet technology, traditional telecommunication networks based on circuit switching are developing towards broadband telecommunication networks based on packet switching. Many operators are preparing or have established packet telecommunication networks. Although users use packet communication terminals to access packet telecommunication The network is the trend of future development, but during the construction of the packet telecom network, it is impossible for operators to expect all subscribers to uniformly replace terminal equipment, so at least the packet telecom network at the current stage must support the access of traditional POTS terminals , so the packet telecommunication network needs to inherit the traditional PSTN b...

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