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Understanding PIAFS Protocol for Interworking in Mobile Networks

Learn about the PIAFS protocol designed for Personal Handy Phone System data communications, standardized by PHS Internet Access Forum in Japan. Discover how to interwork PIAFS in IMT-2000, PHS, and GSM networks by adding AT commands for IWF functions.

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Understanding PIAFS Protocol for Interworking in Mobile Networks

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  1. Interworking to PHS/PIAFS NTT DoCoMo

  2. What is “PIAFS” • “PIAFS” is designed for Personal Handy Phone system data communications protocol. • “PIAFS” is an asynchronous transmission protocol over ISDN 64Kbps unrestricted digital line. • “PIAFS” is standardized by PHS Internet Access Forum in Japan. (See http://www.infopro.or.jp/piaf/)

  3. How to Interwork PIAFS IWF IMT-2000 Network PHS Network PIAFS GSM-RLP

  4. Mobile Terminal requirement • Add AT commands or AT commands parameters which select IWF functions.(such as Land-line modem,V.110,V120,PIAFS) IWF PSTN V.90,V.34,,, IMT-2000 Network RLP ISDN V.110,, PHS PIAFS

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