Switching system

Abstract

An exchange system capable of effectively providing a hold sound during holding time. The exchange system includes a first communication terminal (100) capable of packet communication, a second communication terminal (110) performing packet communication with the first communication terminal (100), and a network (130) connecting the first communication terminal (100) to the second communication terminal (110). When the first communication terminal (100) sets the second communication terminal (110) to the hold state, the first communication terminal (100) converts its hold data (103) by hold data conversion means (104) into a speech which can be interpreted by the second communication terminal (110) and transmits the converted speech as a hold sound.

Description

technical field [0001] The present invention relates to a switching system capable of switching real-time audio calls etc. between communication terminals via the Internet, a local area network, etc., and more particularly to a method capable of placing a call on hold while the call is in progress Efficient handling of status, transfer of calls to another communication terminal, etc. Background technique [0002] In addition to using personal computers on the Internet, the popularity of IP phones capable of making calls from ordinary home phone terminals through Internet IP (Internet Protocol) networks has begun to increase rapidly. [0003] However, when an IP network is used instead of a telephone network built around a PBX installed in an office, measures must be taken to realize various telephone services previously handled by the PBX. [0004] Telephony services performed by standard PBXs include call hold and transfer services. These are common services whereby a cal...

AI Technical Summary

Problems solved by technology

[0020] Also, in the hold system disclosed in Unexamined Japanese Patent Application No. 2000-295354 (Conventional Art Example 2), every time a hold sound is provided, a media player corresponding to the hold sound must be attached and transmitted, resulting in waste

[0021] Also, in the system disclosed in Unexamined Japanese Patent Application No. 2000-270026 (Conventional Art Example 3), when handover is performed, communication terminals A and B each temporarily have two audio paths (e.g., communication Terminal A has an audio path for providing hold tone to communication terminal B and an audio path for transmitting communication terminal B's transfer request to communication terminal C via audio), which results in a heavy load on terminal audio path control and buffer control

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