Digi 90031300 manual Parameters Specified to the Carrier

Parameters Specified to the Carrier

Certain parameters are specified to the carrier when provisioning the T1 line.

You will need to provide the following information to a T1 facility provider.

·Individual Access Line ¾ Select the Phone service or Line Pooling Arrangement, which is sometimes termed Multi-Hunt Grouping. With Line Pooling, one phone number is assigned to a group of end terminals, and the first available terminal will receive the call.

·B8ZS or AMI line code ¾ B8ZS is preferred.

·ESF or D4 framing format ¾ ESF is preferred because of its enhanced diagnostic and maintenance capabilities.

∙Supervisory Signaling Method ¾ Robbed bit signaling; ground start, loop start, immediate start, or wink start

·Dual-tone Multi Frequency (DTMF) or pulse-dial addressing ¾ DTMF preferred

·Be sure you ask for a “trunk-side” T1. Most carriers will provision “line-side” T1s by default, which will cause lower speed modem connections.

Planning the T1 Interface 5