AMIS Overview

The Audio Messaging Interchange Specification (AMIS) Analog Networking feature permits subscribers to exchange voice mail messages with voice messaging systems anywhere in the world, provided those systems also have AMIS analog networking capabilities. The Message Delivery feature permits subscribers to send recorded messages to any touchtone telephone, anywhere in the world (including someone's private residence).

The AMIS Analog Networking feature is especially useful to the following customers:

• AUDIX system customers who wish to exchange voice mail messages with DEFINITY AUDIX systems, INTUITY systems, or with non-Avaya voice messaging systems that cannot be digitally networked. The AUDIX system supports both digital networking and AMIS analog networking. Both types of networking can be used on the same system.
• DEFINITY AUDIX system customers who wish to exchange voice mail messages with AUDIX systems, other DEFINITY AUDIX systems, INTUITY systems, or with non-Avaya voice messaging systems. The DEFINITY AUDIX system currently relies upon AMIS analog networking for all its networking functions.
• INTUITY system customers who wish to exchange voice mail messages with AUDIX systems, DEFINITY AUDIX systems, other INTUITY systems, or with non-Avaya voice messaging systems. The INTUITY system supports both digital networking and AMIS analog networking. Both types of networking can be used on the same system.

General considerations related to the AMIS Analog Networking and Message Delivery features include:

• An INTUITY system that uses AMIS analog networking can exchange messages with any voice mail system that has AMIS analog capabilities as long as the remote machine is defined on the local voice mail system. AMIS messages can alternatively be sent to a range of administered remote machines (for example, all machines in a specific area code or all local numbers). However, system administrators must take precautions when they are administering a range of machines to prevent unauthorized long-distance calls or minimize excessive port use. For more information about INTUITY system security, see Security.
• The Message Sending Restrictions feature is used to limit AMIS Analog Networking and/or Message Delivery calls to specified remote systems (numbers) or user communities. Use of this feature helps the system administrator prevent unnecessary outcalls and control unauthorized long distance calls. For more information about INTUITY system security, see Security.
• Messages are played to the remote machine or message recipient. For example, it takes a full minute for the local system to play a 1-minute message. Because messages are transmitted over analog lines, their quality can degrade.
• The AMIS analog specification allows the local voice mail system to send up to nine AMIS messages per call to an individual remote system. For example, if several AMIS messages have been delivered to the outcalling message queue for delivery, the local system calls the remote system once and plays out up to nine AMIS messages during that call. If any messages beyond the first nine are left in the queue, the local system calls the remote system again to transmit any additional AMIS messages it might have queued.
• The AMIS Analog Networking feature, Message Delivery feature, and Outcalling feature all share the outcalling message-transmission queue and the outcalling ports administered for the system. The message transmission schedule administered for AMIS Analog and Message Delivery messages to be delivered must be equal to or a subset of the outcalling periods administered on the system, or the messages are not transmitted. Further considerations for outcalling port use are discussed in AMIS Planning and Design.

  The maximum number of messages that are stored in the shared AMIS/message delivery/outcalling queue is 250. If the transmission queue reaches 250 messages, no more messages are delivered to the queue until the messages in the queue are transmitted (they remain in the sender's outgoing mailbox in the undelivered folder).

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