How to Configuring Conferencing in Call Manager Express?

Conferencing allows you to join three or more parties in a telephone conversation. Two types of conferencing are available in Cisco Unified CME: ad hoc and meet-me. Ad hoc conferences are created when one party calls another party, then either party adds one or more parties to the conference call. Ad hoc conferences can be hardware-based or software-based, depending on the number of parties. Hardware-based ad hoc conferencing uses digital signal processors (DSPs) to allow more parties than software-based ad hoc conferencing, which allows three parties only. Meet-me conferences are created by parties calling a designated conference number. Meet-me conferencing is hardware-based only. If you configure software-based conferencing, you cannot have meet-me conferences.

Modifying the Default Configuration for Three-Party Ad Hoc Conferencing

Router(config)# telephone-services

Router(config-telephony)# max-conferences 6 Sets the maximum number of simultaneous three-party conferences supported by the router. " max-conference-number �Maximum value is platform-dependent. Type ? for maximum value. Default is half of the maximum value. " gain" �(Optional) Amount to increase the sound volume of VoIP and PSTN calls joining a conference call, in decibels. Valid values are -6, 0, 3, and 6. The default is -6

Router(config-telephony)# end

Configuring Conferencing Options on a Phone

To configure optional end-of-conference options for three-party ad hoc conferencing on a Cisco Unified IP phone running Skinny Client Control Protocol (SCCP), perform the following steps for each phone to be configured

Router# configure terminal

Router(config)# ephone 1

Router(config-ephone)# keep-conference endcall

Router(config)# end

Suggested Reading

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How to Configure Shared-Line and Overlay Options in CME?

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