Instruction manual

Networking and connectivity

555-233-767126 Issue 4 May 2003

■ The ISDN PUBLIC-UNKNOWN NUMBERING form must be correctly

administered to map every SBS extension to the corresponding national

public network complete number (that is, the DID/DDI number). This

public form is used to develop the complete number even if the incoming

SBS trunk group numbering format is administered for private numbering.

Trunk connectivity

Asynchronous Transfer Mode (ATM)

See ‘‘Asynchronous Transfer Mode (ATM)’’ on page 121.

Circuit Emulation Service (ATM-CES)

ATM-circuit emulation service (ATM-CES) lets Communication Manager

emulate ISDN-PRI trunks on an ATM facility. These virtual trunks can serve as

integrated access, tandem, or tie trunks.

ATM-CES trunk emulation maximizes port network capacities by consolidating

trunking. For example, the CES interface can define up to eight virtual circuits for

tie-line connectivity, consolidating onto one circuit card network connectivity that

usually requires multiple circuit packs. ATM-CES is available on all platforms (r,

si, and csi).

CMS measurement of ATM

See ‘‘CMS measurement of ATM’’ on page 66.

Circuit switched

DS1 trunk service

See ‘‘DS1 trunk service’’ on page 136.

Echo cancellation — with UDS1 circuit pack

See ‘‘Echo cancellation — with UDS1 circuit pack’’ on page 136.

See ‘‘E1’’ on page 136.