User guide

Configuring the SCOPIA Gateway 99
Configuring Gateway Settings
allow for a single bonded call. The default setting for PRI Gateways is
30.
When the number of B channels required to process a bonded call
exceeds the number specified in this field, the Gateway performs
downspeeding as shown in Table 3-8.
6 In the For bonded calls, allow downspeeding down to n B channels
field, choose the minimum number of B channels that must be available
before the Gateway attempts to reconnect a video call.
CONFIGURING
QUALITY OF SERVICE
You can assign a Quality of Service (QoS) priority level to video and voice calls
using either pre-configured system settings or by creating your own settings.
Quality of Service settings involve configuring
the Gateway to add a Quality of
Service (QoS) DiffServ Code Point value in the IP header of outbound packets.
Routers on the network that support QoS can give preferential treatment for
bandwidth, latency and jitter to such coded packets and facilitate the efficient
transmission of packets. You can set QoS parameters on the Gateway for voice
calls, video calls or both.
Table 3-8 Downspeeding Policy Operation
Call Direction Downspeed
Advanced
Command
Parameter
If Call B Channels Exceed the
Maximum:
LAN (IP) to WAN (ISDN) enable
(default)
Gateway tries to call at the maximum
number of B channels
LAN (IP) to WAN (ISDN) disable Call disconnects
WAN (ISDN) to LAN (IP) enable
(default)
Call disconnects
WAN (ISDN) to LAN (IP) disabled Call disconnects.