Nortel Networks MICS-XC manual Deregistering a portable

62 / Programming

an extension number is still available before registering a portable telephone to it.

If the extension number shows a status of Available, that extension number is ready for registering a Companion portable telephone.

If the extension number shows a status of Registered, a Companion portable telephone is already registered to that extension number. In this case, you can either pick a different extension number, or de-register the current portable telephone. You must perform deregistration at the portable and in either an Installer or System Coordinator programming session.

Press ≠to view registered and available DNs.

Note: The DN range 637 to 696 can be used by either portable telephones or ISDN S-loops. You can assign all 60 of the DNs to S-loops and none to portable telephones.

You can assign up to 30 DNs to portable telephones, leaving 30 for S-loops. Within these two limits you can choose a combination of ISDN and portable telephone DNs. For more information, refer to Modular ICS Installer Guide.

Deregistering a portable

Deregister an extension number when:

•the portable must be replaced due to loss or breakage

•the portable’s owner departs and you want to assign the handset to someone else with a different telephone number

Press ≠and DEREG to deregister a DN.

MICS-XC Norstar-Companion Installer Guide P0881594 Issue 01