Administering digital interfaces overview

Various digital interface protocols can be assigned to the T1 or E1 telephony card using the web administration interface or the command-line interface. Beginning with IR Release 1.3, a new ISDN Type, QSIG, is available for ISDN-PRI T1 and E1 interfaces.

In IR R2.0, support for multiple trunk protocols has been introduced

The following digital interface protocols can be assigned to a T1 telephony card:

• ISDN Primary Rate Interface
• Loop Start
• Wink Start

The following digital interface protocols can be assigned to an E1 telephony card:

• ISDN Primary Rate Interface
• Loop Start
• R2 MFC

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