Specifications

Troubleshooting the SCOPIA Elite MCU | 70
RADVISION | Administrator Guide for SCOPIA Elite 5100 Series MCU Version 7.7
Figure 5-6 QoS Section of the Setup Tab
c. Select Custom.
d. Enter 34 in all fields.
e. Select Apply.
Step 17 Verify that the bandwidth on the WAN IP links dedicated to the videoconferencing traffic is
enough.
Step 18 (Optional) On Cisco routers, verify that assured forwarding policy is set to 41.
Resolving a Poor Audio Quality Issue
Problem The quality of a participant’s audio received in a conference is poor.
Possible Causes Interoperability issues: an incorrect video format used by an endpoint or incorrect logical channel
negotiation
Solution Perform the procedure in this section:
Procedure
Step 1
Make a point-to-point call without RADVISION products to verify that there are no issues related
to endpoints used in a conference. In case there are problems related to endpoints, use the
endpoint documentation to troubleshoot them.
Step 2 If the problem is not endpoint-related verify that perform verification depending on the kind of
endpoint used in the conference:
• For a SIP endpoint, verify that both the MCU and the endpoint are properly registered with
the SIP proxy.
• For an H.323 endpoint, verify that both the MCU and the endpoint are properly registered
with the ECS.
• For a 3G endpoint, verify that both the MCU and the endpoint are properly registered with
SIP proxy and/or the ECS.
Step 3 If registration is correct, collect logs and wireshark traces to RADVISION Customer Support.