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72 ICX (International) issued October 2000 ICX-50-700
Chapter 3. System Features Section 700 - Operation
Hardware Requirements
•N/A
Considerations
•N/A
Voice Mail Integration (Third Party)
Description
The System supports third party Voice Mail systems with features such as:
• Answer Supervision for Voice Mail
• Call Forward ID Code for Voice Mail
• CLI/DDI ID Code for Voice Mail
• High Priority Message Waiting
• Message Key ID Code
Answer Supervision for Voice Mail
Description
This feature allows the System to send an answer signal to third-party Voice Mail systems.
Without this feature a third-party Voice Mail cannot receive a signal indicating that a System
extension has answered. In other words, to determine that the extension has answered, the Voice Mail
system would have to wait until the extension stops receiving ringback tone. As a result, waiting for
the ringback to stop often delays connection times for calls from Voice Mail to extensions. By sending
an answer signal, this feature provides quicker response time between the ICX and the Voice Mail
system.
Hardware Requirements
•AEC Port
Considerations
• The digits used for the answer signal code are determined by the requirements of the Voice Mail
system.
• The answer code may be up to 4 characters and consist of the characters 0 - 9, *, #, and pause.
• If the called extension does not answer and is forwarded to Voice Mail, the System sends a Call
Forward ID code back to the Voice Mail system.
• During transmission of the answer signal code, other DTMF digits and functions from the ICX or
S-ICX extension are ignored.
• The Voice Mail port must be assigned as a Voice Mail port connection.
• The DTMF pattern is set as pattern 2.
Call Forward ID Code for Voice Mail
Call Forward ID Code for Voice Mail allows you to call forward to a third-party Voice Mail system.
The ID Code sends the digits that are required by the Voice Mail to identify the System extension.