Cisco Systems 30 VIP manual Cisco CallManager Feature Issues

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Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1)

The disconnect cause values (origCause_value and destCause_value — depending on which side hung up the call), map to Q.931 disconnect cause codes (in decimal) that can be found at http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/dbook/disdn.htm. In the example above, cause 16 refers to a normal call clearing. If the call is going out a gateway to the PSTN, then the CDR can be used to determine which side is hanging up the call. Much of the same information can be obtained by enabling tracing on the Cisco CallManager. Use the trace tool only as a last resort or if the network is not yet in production.

Check Your Loads

As with any problem, check the phone and gateway loads and CCO (Cisco Connection Online at www.cisco.com) for the latest software loads, new patches, or release notes relating to the problem.

Cisco CallManager Feature Issues

Problems may occur with features that are used in conjunction with Cisco CallManager, such as Conference Bridge or Media Termination Point. Some feature problems can be caused by configuration errors or lack of resources. For example, users may not be able to conference calls if the specified number of Ad Hoc conference resources has been exceeded. The result would be a dropped call when the user attempted to initiate the conference feature. This could appear to be a Cisco CallManager feature issue, when in fact it is a problem with the number of available conference resources. The number of times a conference resource was required but not available is one of the counters logged in Microsoft Performance. The same behavior would occur if there are conference resources available, but the conferencing service had stopped.

Codec/Regions: Codec Mismatch

If a user gets a reorder tone when going off-hook, it could be the result of codec disagreement between regions. Verify that both call ends support at least one common codec (for example, G.711). If not, you will need to use transcoders.

A region specifies the range of supported codecs that can be used with each of the other regions. Every device belongs to a region.

Note: Codec negotiation with a Cisco IOS router is not supported.

For example, Region1<->Region2 = G.711, means that a call between a device in Region1 and a device in Region2 can use G.711 or any other supported codec that requires the same or less bandwidth as G.711 (any supported codecs within G.711, G.729, G.723, and so on).

Note: The following codecs are supported for each device:

Cisco IP Phone 7960 — G.711A-law/µ -law, G.729AnnexB

Cisco IP Phone SP12 series and VIP 30 — G.711A-law/µ -law, G.723.1

Cisco Access Gateway DE30 and DT-24+ — G.711A-law/µ -law, G.723.1

© 2000 Cisco Systems, Inc.

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Contents SDI Trace Output Configuring Traces Reorder Tone Through Gateways Gateway Registration Problems Page Purpose Documentation Checklist Codec Channel Acronym/Term Cnf Law mu-lawChannel Calling Search Space CCAPi Cisco IOS ClusterJitter Law mu-law Flow Full duplex 711 729 225 245 323 Half Duplex HookflashPartition Route Filter Route Group Route List Route Pattern 931Silence Suppression Voice Activation Detection Voice Activation Detection Silence Suppression VoIP Translation PatternCisco CallManager Administration Details View Report Microsoft PerformanceMicrosoft Event Viewer SDI Trace Configuring Traces SDL Trace Page SDLTraceDataFlag Value SDLTraceTypeFlag Value DefinitionCall Detail Records CDR and Call Management Records CMR Sniffer TraceSelect Service Service Parameters CDRs Voice Quality Problem CategoriesPage Packet Number Time absolute ms Time delta ms Button Help John Check Your Loads Phone Resets Dropped Calls Page Page Cisco CallManager Feature Issues Locations Conf Bridge Region1 Region2 MTP Resource Problems MTP Dial Plans Dialing DOES-NOT-EXIST Page DialPlanWizardG Clause NamePattern Device Name Device Description Usage Pattern PartitionReorder Tone Through Gateways Slow Server ResponseGateway Registration Problems Module.port CFG Booting Dhcp for dynamic configurationTracyclose mod port tracystart mod port TaskID Cmd show dhcp Gmsg ***TFTP Error File Not Found Gmsg CCM#0 CPEvent = Loadid -- CPState = LoadResponse Gatekeeper ProblemsRegistration Rejects RRJ Cisco IP Phone Initialization Process Sample TopologyPage Skinny Station Registration Process Acknowledge Station ResetMessage Description Station Register Station IP PortPage Cisco CallManager Initialization Process Self-Starting Processes Cisco CallManager Registration Process Cisco CallManager KeepAlive Process Cisco CallManager Intra-Cluster Call Flow Traces Cisco Systems, Inc CCMStationD stationOutputStopTone tcpHandle=0x4fbbc30 Cisco Systems, Inc Call Flow Traces Page Cisco Systems, Inc Following debug messages show that the call is in progress Gatekeeper Endpoint Registration Debug Messages and Show Commands on the Cisco IOS GatewayCisco Systems, Inc Page Cisco IOS Gateway with T1/PRI Interface Cisco IOS Gateway with T1/CAS Interface Cisco Systems, Inc Inter-Cluster H.323 Communication Call Flow Traces Failed Call Flow Cisco Systems, Inc Reading Records Writing RecordsRemoving Records Table SchemaFields in a Call Detail Record Known IssuesDeciphering the Time Stamp Originator’s node ID Global Call IdentifierOrigination leg call identifier Date/time of call originationPort for the originator’s media connection Isdn location valueCalling party cause Of call termination IP address for the originator’s media connectionCalled party’s partition Destination span or portIP address to which the call was delivered unsigned integer IP port to which the call was deliveredDate/time of disconnect unsigned integer IP address for the destination outgoing media connectionCodec type used by the destination on sending side Date/time of connectDirectory number used on this call Global Call Identifier for this callCisco CallManager node identifier Call IdentifierInterarrival jitter during this connection Lost RTP packets during this connectionLatency experienced during this connection Normal Calls Cisco IP Phone-to-Cisco IP Phone Call Management Records Logged By Call Type Codec Cause Codes Description Codec Types Compression / Payload typesNumber changed Alarms Calling Cisco Technical Assistance Center TAC Index Debug messages and show commands Page Topology

30 VIP specifications

Cisco Systems has been a leading company in networking technology, and its suite of products is continually evolving to meet the demands of modern digital infrastructure. One of the latest introductions is the Cisco Systems 30 VIP, a highly advanced solution designed to enhance network performance and security for businesses of all sizes.

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Another notable characteristic of the 30 VIP is its integrated security features, including advanced threat detection and prevention systems. These are designed to protect sensitive business data from cyber threats, ensuring operational continuity and compliance with industry regulations. The Cisco 30 VIP also supports secure access protocols, allowing for secure remote connections, which is increasingly vital in today’s hybrid work environment.

The adaptability of the Cisco Systems 30 VIP is another of its standout aspects. It offers compatibility with existing Cisco infrastructure, making it easier for businesses to adopt new technologies without overhauling their entire system. This modular approach allows for easy upgrades and integration of future technologies, ensuring long-term viability and investment protection.

Furthermore, the Cisco Systems 30 VIP is powered by intelligent network management software that simplifies monitoring, configuration, and troubleshooting processes. This software enhances network visibility, allowing administrators to identify and address potential issues proactively, thereby reducing downtime and enhancing user experience.

In summary, the Cisco Systems 30 VIP represents a significant advancement in network technology with its high throughput, integrated security features, adaptability, and intelligent management capabilities. These elements combine to provide a robust solution that meets the evolving needs of modern businesses while ensuring secure and efficient operations. As organizations continue to navigate an increasingly complex digital landscape, the Cisco Systems 30 VIP offers a future-proof option designed to facilitate growth and resilience.
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