NEC UNIVERGE SV9100 Manual page 41

terminal used. If the system is set to allow peer-to-peer calls between standard SIP stations then no
system DSP resources are required to support the video functionality between standard SIP phones.
Conditions
CO calls cannot be transferred to a Remote Conference pilot and must directed to the conference
pilot as a DID or DIL termination.
If peer-to-peer is disabled the standard SIP video feature requires VoIP DSP resource be reserved
for this function reducing the number of VoIP resources available for SIP phone calls.
The system will always reserve 64 of the total 256 VoIP DSP resources for SIP voice calls.
When set in programming the following tables show how many resources are reserved for each
video mode. The total number of VoIP resources reserved for video cannot be higher than 192.
MCU Mode Video Channel VoIP Reservation (Peer-to-Peer Enabled Systems)
Max simultaneous group (each
Program
group is 4 video channels)
84-27-22 MCU Mode 1 VoIP Reserved
84-27-23 MCU Mode 2 VoIP Reserved
Video over SIP trunks is not supported for version 1.00 software and will be supported in a later
release.
The combination of Programs 84-27-20, 84-27-21, 84-27-22 and 84-27-23 determine the total
number of VoIP DSP resources reserved for video channels (not exceed 192).
Mode 1 video quality is CIF (352x288).
Mode 2 video quality is VGA (640x480).
Video quality mode used depends on the standard SIP device support of that resolution.
Setting Programs 84-27-22 or 84-27-23 to 1 will allow 4 video channels for MCU video mode type (1
or 2) if DSP resources are available.
MCU group for mode 1 and mode 2 video cannot be enabled at the same time as it will try to
reserve more than 192 VoIP DSP resources for video.
The system will not allow more than 192 VoIP DSP resources to be reserved for video.
After making setting changes to Programs 84-27-20, 84-27-21, 84-27-22 or 84-27-23 the VoIP
Part 2: VoIP Manual
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