Interactions for Extension to Cellular

Last Updated : Aug 09, 2021 |

This section provides information about how the Extension to Cellular feature interacts with other features on the system. Use this information to ensure that you receive the maximum benefits of Extension to Cellular in any feature configuration.

Attendant

If the Calls Allowed field on the Stations with Off-PBX Telephone Integration screen is internal, attendant-originated and attendant-extended calls are not delivered.

Call coverage

Manipulate the number of unanswered rings on the cell phone If you want to ensure that unanswered calls go to office voice mail instead of the cell phone’s voice mail. Set the value in the Number of Rings field on the Coverage Path screen for the office telephone to a lower number than the voice mail coverage setting on the corresponding cell phone. For more information, see Administering voice mail coverage.

Call Detail Recording

A Call Detail Recording (CDR) record is generated for calls that originate from an Extension to Cellular cell phone. For this feature to work, incoming trunk CDR must be turned on. The system does not generate a CDR if the user dials a Feature Name Extension (FNE) that does not result in a call.

Cellular service provider voice mail

Office stations can have standard Avaya server running Communication Manager voice mail coverage such as Communication Manager Messaging. But cell phones usually have voice mail coverage from the cellular service provider. There are now two ways to coordinate the two systems.

First, you can administer Communication Manager Extended Access Cellular Voice Mail Avoidance. Use the Cellular Voice Mail Avoidance feature to reduce the uncertainty as to where unanswered Extension to Cellular calls go. An unanswered call ends either at your office telephone voice mail, or at your cell phone voice mail system.

Communication Manager detects when the cell phone is not the entity that answers the call and brings the call back to the server. The call is treated as a normal call on the telephone with Extension to Cellular enabled. The call is then processed with the normal number of rings set on your call coverage.

Second, you can set up the number of unanswered rings so that one of the voice mail systems always answers first. However, there are coverage options in both the Avaya server running Communication Manager and the network that send a call immediately to the respective voice mail. Examples of these options include busy, active, or send-all-calls in Communication Manager and cell phone unavailable or network congested in the network. Users must understand that an unanswered call can result in a voice mail message in either mailbox.

Class of Restriction

For calls toward an Extension to Cellular station, Class of Restrictions are applied normally for a call terminating to a station. In particular, if the station is mapped, then the Class of Restriction (COR) of the office telephone applies. Any restrictions imposed by call filtering are applied after those imposed by the COR. Calling party restrictions pertaining to trunks do not initiate Extension to Cellular calls. These restrictions include outward, tac-toll, and all-toll.

Its important to note that a phone may be restricted from making outside calls but the Extension to Cellular calls can be extended to the cell phone.

Distributed Communications System

Interswitch calls on Distributed Communications System (DCS) trunks are treated as internal calls.

  • When an Extension to Cellular user has the Calls Allowed field on the Stations with Off-PBX Telephone Integration screen set to internal or all, DCS calls are delivered to the cell phone.

  • When an Extension to Cellular user has the Calls Allowed field set to external or none, DCS calls are not delivered.

Distinctive alerting

Cell phones might not receive distinct rings for different types of calls. Check with your cellular service provider.

Extension to Cellular enable and disable

Extension to Cellular can be enabled or disabled. Users can enable or disable Extension to Cellular calls with either FACs or the enable and disable feature status button.

Users who receive their Extension to Cellular service through their cellular service provider (CSP) cannot enable or disable their Extension to Cellular calls. Through CSP, Extension to Cellular is always enabled.

Feature Access Codes

A user can activate Communication Manager features through Feature Access Codes (FACs). For more information on setting up feature access codes, see Setting up Feature Access Codes for Extension to Cellular.

Feature Name Extensions

When Extension to Cellular is enabled, a user can activate a Communication Manager feature through dialing a Feature Name Extension (FNE) from the cell phone or SIP endpoint. Feature name extensions correspond to a direct inward dialing (DID) number for each feature. Each FNE must match your dial plan, and are administered system-wide.

Message waiting indication

Cell phones cannot receive a screen that indicates a message waiting directly from Communication Manager.

Notify me under Unified Messenger for MS Exchange

The notify me feature of Unified Messenger® for Microsoft Exchange® (Version 4.0 or later) notifies users of messages in the corporate voice mailbox through the cell phone display. For more information on using this feature, see Setting Notify Me in the Unified Messenger Telephone User Interface Online Guide, accessed through http://www.avaya.com/support.

Note:

The cell phone must support text messaging to use this feature.

Office caller ID for another user

Incoming calls from other Extension to Cellular users are internal calls if office caller ID is enabled for the station associated with the cell phone.

  • When an Extension to Cellular user has the Calls Allowed field set to internal or all, the Extension to Cellular calls are delivered.

  • When an Extension to Cellular user has the Calls Allowed field set to external or none, calls from other Extension to Cellular users are not delivered.

QSIG

Inter-PBX calls on QSIG trunks are treated as internal calls.

  • When an Extension to Cellular user has the Calls Allowed field set to internal or all, QSIG calls are delivered.

  • When an Extension to Cellular user has the Calls Allowed field set to external or none, QSIG calls are not delivered.

Service Observing

You cannot activate the Service Observe feature from numbers mapped with EC500. If a call comes in from a number mapped with EC500, Communication Manager considers the call to be bridged appearance. If you use bridged call appearance, you cannot use Service Observing.