Core Issue
When call volume consumes a significant amount of bandwidth, the update messages for available bandwidth between Cisco CallManagers are being lost.
Details are available in bug ID CSCdy04007 - Location counters out of sync on servers in cluster.
Resolution
Bandwidth message updates between Cisco CallManagers may be lost on WAN connections during high call volume.
Workarounds include:
- Reloading the servers will reset the bandwidth counters.
- Increasing the bandwidth between sites.
To resolve the problem, upgrade to 3.1(04b)SpA.
Note: Before you upgrade, consult bug ID CSCdy04007 For the most recent information, including details on Cicso CallManager software versions.
Problem Type
Call connection (Connection quality: One-way audio, no busy tone, dropped calls, etc.)
Call Connection
Reorder tone
When Problem Occurs
While call is connecting
Call Topology and Direction
IP network > IP network
Bug ID Number
CSCdy04007
Data Network Physical Characteristics
Frame relay
Leased line (PPP)
CallManager Versions
CallManager 3.1
