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Audio Messaging Interchange Specification (AMIS)

Definition - What does Audio Messaging Interchange Specification (AMIS) mean?

Audio Messaging Interchange Specification (AMIS) is a standard used in voice and call processing. It enables the transmission of voicemail messages between voicemail systems of different vendors. Prior to the Audio Messaging Interchange Specification, devices made by different manufacturers could not communicate with each other.

Techopedia explains Audio Messaging Interchange Specification (AMIS)

Supported by most major voicemail system manufacturers, the Audio Messaging Interchange Specification provides all the necessary steps to network voice processing applications, irrespective of the manufacturer. The messages sent to a subscriber with audio messaging interchange specification are delivered using an analog telephone call. The Audio Messaging Interchange Specification subscribers are similar to Internet subscribers, with the difference being the Internet subscriber’s off-system storage is email, whereas the Audio Messaging Interchange Specification subscriber’s off-system storage is a different voicemail system.

In Audio Messaging Interchange Specification, the messaging systems are called nodes, which are assigned with a unique ID. The node placing the call is called the originating node, and the node which receives the message is called the destination node. When the destination node accepts the call from the originating node, a voice message is transmitted by analog playback. The destination node then records and moves the message to the associated mailbox. The Audio Messaging Interchange Specification protocol only allows a maximum of nine messages per batch, with each message having a maximum length of eight minutes. Some nodes accept longer messages and some refuse to take messages. Another important feature of the Audio Messaging Interchange Specification is that incoming messages cannot be delivered to public distribution lists and can only be delivered to subscriber mailboxes.

The audio messaging interchange specification provides a cost effective and simple interchange protocol.

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