AT&T 555-230-520 manual GL-8Issue 4 September

Glossary

inflow

A call flow or action that is defined according to the management system and the switch version involved.

For R3 CMS/BCMS and G3 with call vectoring enabled, the term refers to a call that is answered by a split other than a primary split.

For R2 CMS, when multiple-split queuing is involved, the term refers to a call that requeues to the first of multiple splits.

Integrated Services Digital Network (ISDN)

A public or private network that provides end-to-end digital connectivity for all services to which users have access by a limited set of standard multi-purpose user-network interfaces defined by the CCITT. Through internationally accepted standard interfaces, ISDN provides digital circuit-switched or packet-switched connectivity within the network and links to other ISDNs to provide national and international digital connectivity.

intelligent interflow

A method of interflowing calls via Look-Ahead Interflow whereby the receiving switch can decide to accept or deny calls on a call-by-call basis.

inter-digit timer

A device that is restarted once the call prompting digit collection is completed. The device is restarted to detect a timeout for releasing the TTR.

interflow

A process that allows calls that are directed or redirected to one split to be redirected to an external destination.

intraflow

A process that allows calls that are unanswered at a split within a predefined time frame to be redirected to other splits on the same switch.

ISDN

See Integrated Services Digital Network (ISDN).

ISDN PRI link

A standard ISDN frame format that specifies the protocol used between two or more communications systems. PRI runs at 1.544 Mbps and, as used in North America, provides 23 64-Kbps B-channels (voice or data) and one 64-Kbps D-channel (signaling). The D-channel is the 24th channel of the interface and contains multiplexed signaling information for the other 23 channels.

GL-8Issue 4 September 1995