Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1)
© 2000 Cisco Systems, Inc.
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Locations
If a user gets a reorder tone after dialing a number, it could be because the Cisco CallManager
bandwidth allocation for the location of one of the call end devices has been exceeded (less than
24k). Cisco CallManager checks for 24k available bandwidth for each device before making a
call. If less than 24k bandwidth is available, Cisco CallManager will not setup the call and the
user will hear a reorder tone.
12:42:09.017 Cisco CallManager|Locations:
Orig=1 BW=12 Dest=0 BW=-1 (-1 implies infinite bw
available)
12:42:09.017 Cisco CallManager|StationD - stationOutputCallState tcpHandle=0x4f1ad98
12:42:09.017 Cisco CallManager|StationD - stationOutputCallInfo CallingPartyName=,
CallingParty=5003, CalledPartyName=, CalledParty=5005, tcpHandle=0x4f1ad98
12:42:09.017 Cisco CallManager|StationD - stationOutputStartTone: 37=ReorderTone
tcpHandle=0x4f1ad98
Once the call is established, the Cisco CallManager will subtract bandwidth from the locations
depending on the codec used in that call. If the call is using G.711, Cisco CallManager will
subtract 80k; if the call is using G.723, Cisco CallManager will subtract 24k; if the call is using
G729, Cisco CallManager will subtract 24k.
Conference Bridge
Use the following information to help troubleshooting a “No Conference Bridge available”
problem. This could be either software or a hardware problem.
First, check to see if you have any available Conference Bridge resources registered with
Cisco CallManager (either software or hardware). To do so, you can use Microsoft Performance
to check the number of “Unicast AvailableConferences.”
The Cisco IP Voice Media Streaming application performs the conference bridge function. One
software installation of Cisco IP Voice Media Streaming will support 16 Unicast Available
Conferences (3 people/conference), as shown in the following trace.
10:59:29.951 Cisco CallManager|UnicastBridgeControl - wait_capabilities_StationCapRes - Device=
CFB_kirribilli - Registered - ConfBridges= 16, Streams= 48, tcpHandle=4f12738
10:59:29.951 Cisco CallManager|UnicastBridgeManager - UnicastBridgeRegistrationReq - Device
Registration Complete for Name= Xoð´ ô%ð´ - DeviceType= 50, ResourcesAvailable= 16,
deviceTblIndex= 0
One E1 port (WS-X6608-E1 card contains 8x E1 ports) provides five Unicast Available
Conferences (max conference size = 6), as shown in the following trace.
11:14:05.390 Cisco CallManager|UnicastBridgeControl - wait_capabilities_StationCapRes - Device=
CFB00107B000FB0 - Registered - ConfBridges= 5, Streams= 16, tcpHandle=4f19d64
11:14:05.480 Cisco CallManager|UnicastBridgeManager - UnicastBridgeRegistrationReq - Device
Registration Complete for Name= Xoð´ ô%ð´ - DeviceType= 51, ResourcesAvailable= 5,
deviceTblIndex= 0
