Overview

The conferencing feature lets the Excel platform make multiple full-duplex and half-duplex connections. You assign conferencing using the DSP SIMM Configure message (0x00C0). When one or more DSP chips are configured for the conferencing function, the Excel platform dynamically manages all conferencing DSP resources.

A single DSP chip can generate several independent conferences, in any combination, up to the maximum number allowed for the conference type and the maximum number of channels serviced by the DSP chip. For example, on the DSP-ONE card, a DSP chip configured for a standard conference can support two 7-party conferences, four 3-party conferences, or any combination of fourteen channels with a conference size of seven or smaller.

Use the Conference Create message (0x004B) to create a multi-channel conference. A DSP chip configured for conferencing may have more than one conference created on it, in any combination of the maximum allowed channels.

You designate the Conference Type in byte 9 of the Conference Create message (0x004B).

The available conference types are as follows:

0xN1 Standard, µ-law encoded

0xN2 Standard, A-law encoded

0xN3 Mixed (µ-law and A-law)

0xN4 Monitor

0xN5 Unified Dynamic

0xN6 Unified Dynamic with DTMF Clamping

0xN7 Unified Dynamic, µ-law Broadcast

0xN8 Unified Dynamic, µ-law Broadcast with DTMF Clamping

0xN9 Unified Dynamic, A-law Broadcast

0xNA Unified Dynamic, A-law Broadcast with DTMF Clamping