ShoreTel IP

This system has an external port to plug in an external player.

All of these systems are generally mounted in a rack environment. No area for an internal stored audio file.

Inter-tel / Mitel 5000

This system is the main IP system of the Inter-tel brand.

These units have a standard plug to accommodate an external player.

Or you can internally store up to 5 different audio files used for music on hold. These are stored on the server and are loaded though a user interface. Can be easily done by an installer and often can be done by the end user depending on their comfort level. Again check to see if these files start from the beginning each time.

Nortel BCM (Business Call Manager)

This is the main system for the the Nortel line.

For music on hold these systems have an standard plug for an external player.

Some of the BCM systems can store a WAV file internally Generally the installers prefer an external source as the WAV file can take unnecessary bandwidth away from the operation of the system itself.

Cisco Call Manager Express

This is the smaller version of the Call Manager. Generally this would be the system located in satellite offices. This system is router based version.

The music on hold source will generally be corporate server (Call Manager). The audio is streamed to each individual location. Audio usually starts from the beginning for each caller.

Depending on how the router is populated, you may be able to accommodate an external player as the music on hold source. This is sometimes possible with and E & M card with a RJ11 or RJ45 connection on the router.

Cisco Call Manager

This IP system is the most popular system sold by Cisco. Generally this is the system at a headquarters location.
This is a server based system that can store audio files internally and doesn’t have a standard plug in for an external player. This unit then can stream the audio to other remote locations from one central location, thus only needing one file. Generally speaking the audio will start from the beginning for each caller put on hold. The system can be programmed to play in a loop, however most will not choose this method as it can take additional resources to do this.
As an alternative, it is possible to adapt an external player with an adapter that has a USB interface with a mini plug. Similar to http://www.griffintechnology.com/products/imic/
The Cisco installer will then need to program the system to look to the USB interface as the music on hold source.

Avaya IP office

This system is an IP system for small to medium sized companies. Probably the most popular system by Avaya. This system can store a wave file of 30 seconds to 1 minute. Generally the audio will start from the beginning of the file each time.
Generally speaking the installers prefer to have an external player to play the audio for this system and it has a standard plug in.

Mitel SX 200

Generally for small to medium size business customers. Unit has ability for one on hold port. Often times this system is seen in smaller hotel applications

Mitel 3300

Unit has a traditional on hold plug in for a external player. The system can also accept a WAV file to be uploaded with their “Ops Manager” program. File size is limited and needs to be a certain rate.

The loading of the files needs to be done at the site and cannot be uploaded to remote locations.

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