Method for realizing internal voice calls of ONU (Optical Network Unit) devices in passive optical network

Abstract

This invention discloses a method for realizing internal voice calls of ONU (Optical Network Unit) devices in a passive optical network. The method comprises the following steps: configuring a local IP (Internet Protocol) and a Port of an OLT (Optical Line Terminal), a local IP and a Port of a calling ONU; powering on the calling ONU and setting up a socket; sending registration information to the OLT; after hooking off and dialing, getting into the dialing state; when dialing is finished, sending a called number and parameters of a calling SDP (Session Description Protocol) to the OLT; after the OLT matches and finds the called ONU, sending the calling number and the parameters of the calling SDP to the called ONU; if the called ONU can continue, sending the called number and the parameters of the called SDP to the calling ONU; playing a ring-back tone by the calling ONU; after the called ONU hooks off, sending a call establishment to the calling ONU so as to set up the call; if the called ONU cannot continue, sending a reject message to the calling ONU, and playing a busy tone by the calling ONU. By adopting the method of the invention, after the ONU is powered on, the socket is set up by using the local IP and local Port communicated with the OLT; thus, the messages are transmitted between the ONU and the OLT to realize the internal voice service; the messages are simply controlled between the ONU and the OLT, and the interaction is less; and the interaction process between the ONU and the OLT is greatly simplified.

Description

technical field [0001] The invention relates to the technical field of PON (Passive Optical Network, Passive Optical Network), in particular to a method for implementing an internal voice call of an ONU device in a passive optical network system. Background technique [0002] With the development of IP technology and VoIP (Voice over Internet Protocol, VoIP) technology, IP voice is gradually replacing traditional telephones, and has been widely used in voice communication systems. At present, the realization of telephony services inside ONU (Optical Network Unit, Optical Network Unit) equipment and between ONU equipment requires upper-layer softswitch (softswitch is a functional entity, which provides call control and connection control of services with real-time requirements for the next-generation network NGN Function, which is the core of next-generation network call and control) to control, when the connection between ONU equipment and softswitch fails or there is no sof...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the problem that the voice call service inside the ONU device or between ONU devices under the same OLT is interrupted when the connection between the ONU device and the soft switch fails or there is no soft switch on the upper layer

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