Tandberg 770,880 and 990 MXP

What are the differences among the Tandberg 990, 880 and 770 MXP?

The differences among the Tandberg 990, 880 and 770 MXP are:

The Tandberg 990 MXP uses a bandwidth up to 512 Kbps in H.323 and up to 2 Mbps in H.323 and SIP.

The Tandberg 880 MXP uses a bandwidth up to 384 Kbps in H.320 and up to 1.1 Mbps in H.323 and SIP.

The Tandberg 770 MXP uses a bandwidth up to 128 Kbps in H.320 and up to 768 Kbps in H.323 and SIP.

The Tandberg 990 MXP and TANDBERG 880 MXP support all multipoint facilities.

The Tandberg 770 MXP does not support multipoint facilities.

Tandberg Set Top 990, 880 and 770 MXP