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paul 18-October-2007 03:54:33 PM

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ntegrated Services Digital Network (ISDN) User Part (ISUP) [12] is a level 4 protocol used in Signaling System No. 7 (SS7) networks.

Posted by waqasahmad

In short we define ISUP used to establish and maintain connections for voice and data calls

Posted by HamidAliKhan

ISUP used to establish and maintain connections for voice and data calls

Posted by Hash007

For details:

en.wikipedia.org/wiki/ISDN_User_Part

Posted by sagitraz

ISUP is the ISDN User Part of SS7. ISUP defines the protocol and procedures used to setup, manage and release trunk circuits that carry voice and data calls over the public switched telephone network. ISUP is used for both ISDN and non-ISDN calls. Calls that originate and terminate at the same switch do not use ISUP signalling. ISDN User Part messages are carried on the signalling link by means of signal units. The signalling information field of each message signal unit contains an ISDN User Part message consisting of an integral number of octets.

Posted by treyton

Posted: 18-October-2007 04:29:52 PM By: treyton ISUP is the ISDN User Part of SS7. ISUP defines the protocol and procedures used to setup, manage and release trunk circuits that carry voice and data calls over the public switched telephone network. ISUP is used for both ISDN and non-ISDN calls. Calls that originate and terminate at the same switch do not use ISUP signalling. ISDN User Part messages are carried on the signalling link by means of signal units. The signalling information field of each message signal unit contains an ISDN User Part message consisting of an integral number of octets.
Posted: 30-December-2008 05:40:04 AM By: sagitraz For details: en.wikipedia.org/wiki/ISDN_User_Part
Posted: 30-December-2008 01:41:11 PM By: Hash007 ISUP used to establish and maintain connections for voice and data calls
Posted: 31-December-2008 01:00:57 PM By: HamidAliKhan In short we define ISUP used to establish and maintain connections for voice and data calls
Posted: 01-January-2009 01:15:14 AM By: waqasahmad ntegrated Services Digital Network (ISDN) User Part (ISUP) [12] is a level 4 protocol used in Signaling System No. 7 (SS7) networks.