SIP-PSTN Gateway 系統實作
Date Issued
2004
Date
2004
Author(s)
Chou, Shu-Cheng
DOI
zh-TW
Abstract
In this thesis, we are mainly to describe how to design and implement a Gateway program that can allow a SIP User Agent in the SIP network to make and receive calls with the traditional telephone in Public Switched Telephone Network (PSTN).
The Gateway architecture is different from the common ones that use to work between SIP-based network and PSTN. In order to achieve the goal, call establishment is simple and speed, and reduce the cost, we probe into how to simplify architecture of the system step by step. Try to prune the unnecessary entities away, but still attain the request of communication. Without the architecture of MGCP, the Gateway handles both call control signaling and media transmission, no signaling negotiation between MGC and MG can save time. Further we also discuss how to make call normally between IP and PSTN, without the signaling negotiation in PSTN.
Subjects
異質網路間互通
網路電話
Gateway
VoIP
SIP
Type
thesis