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・ Telephone recording
・ Telephone recording laws
・ Telephone Records and Privacy Protection Act of 2006
・ Telephone Road
・ Telephone services in Turkey
・ Telephone signaling interface
・ Telephone slamming
・ Telephone switchboard
・ Telephone Systems International
・ Telephone tapping
・ Telephone tapping in the Eastern Bloc
・ Telephone Time
・ Telephone token
・ Telephone Transfer Act 1911
・ Telephone USA of Wisconsin
Telephone User Part
・ Telephone VoIP Adapter
・ Telephone, Texas
・ Telephone-pole beetle
・ Telephonetics
・ Telephono
・ Telephonoscope
・ Telephony
・ Telephony Application Programming Interface
・ Telephony application server
・ Telephony In Greater Manchester
・ Telephony portal
・ Telephony Server Application Programming Interface
・ Telephony service provider
・ Telephos Euergetes


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Telephone User Part : ウィキペディア英語版
Telephone User Part

Telephone User Part (TUP) provides conventional PSTN telephony services across the Signalling System No. 7 (SS7) network. TUP was the first layer 4 protocol defined by the standards bodies and as such did not provision for ISDN services. It has now largely been replaced by ISUP. However, it can still be found in operational use in some parts of the world (e.g., China).
TUP is defined in ITU-T Recommendations Q.721-725. These define the international telephone call control signalling functions for use over SS7.
Various national variants of TUP have evolved, some of which provide varying degrees of support for ISDN. E.g. French SSUTR2 and Chinese TUP (Specification GF001-9001).



抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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