Cisco Systems 30 VIP manual Flow Full duplex 711 729 225 245 323 Half Duplex Hookflash, Partition

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

Glossary

DNIS

DNS

DRQ

DTMF

Flow

Full duplex

G.711

G.729

H.225

H.245

H.323

Half Duplex

Hookflash

ICCP

ISDN

Jitter

µ-law (“mu-law”)

MGCP

MTP

Partition

PBX

machine, or analog phone attached to a gateway. Examples include 1000, 24231, and so on.

Dialed Number Identification Service.

Domain Name System. System used in the Internet for translating names of network nodes into addresses.

Disengage Request.

Dual tone multifrequency. Use of two simultaneous voice-band tones for dialing (such as touch tone).

Stream of data traveling between two endpoints across a network (for example, from one LAN station to another). Multiple flows can be transmitted on a single circuit.

Capability for simultaneous data transmission from both a sending station and a receiving station.

Describes the 64-kbps PCM voice coding technique. In G.711, encoded voice is already in the correct format for digital voice delivery in the PSTN or through PBXs. Described in the ITU-T standard in its G-series recommendations.

Describes CELP compression where voice is coded into 8-kbps streams. There are two variations of this standard (G.729 and G.729 Annex A) that differ mainly in computational complexity; both provide speech quality similar to 32-kbps ADPCM. Described in the ITU-T standard in its G-series recommendations.

An ITU standard that governs H.225 session establishment and packetization. H.225 actually describes several different protocols: RAS, use of Q.931, and use of RTP.

An ITU standard that governs H.245 endpoint control.

Extension of ITU-T standard H.320 that enables videoconferencing over LANs and other packet-switched networks, as well as video over the Internet.

Capability for data transmission in only one direction at a time between a sending station and a receiving station. BSC is an example of a half- duplex protocol.

Short on-hook period usually generated by a telephone-like device during a call to indicate that the telephone is attempting to perform a dial-tone recall from a PBX. Hookflash is often used to perform call transfer.

Intra-Cluster Control Protocol

Integrated Services Digital Network. Communication protocol, offered by telephone companies, that permits telephone networks to carry data, voice, and other source traffic.

The variation in the arrival times of voice packets.

Companding technique commonly used in North America. µ-law is standardized as a 64-kbps codec in ITU-T G.711.

Media Gateway Control Protocol. A protocol for Cisco CallManager to control VoIP gateways (MGCP endpoints).

Media Termination Point.

A Partition is a logical grouping of Directory Numbers and Route Patterns with similar reachability characteristics. For simplicity, these are usually named for their characteristic, such as "NYLongDistance", "NY911", etc. When a DN or Route Pattern is placed into a certain partition, this creates a rule for who can call that device or Route List.

Private Branch Exchange. Digital or analog telephone switchboard located on the subscriber premises and used to connect private and public telephone networks.

© 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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