Cisco Systems 30 VIP manual Cisco IOS Gateway with T1/CAS Interface

Page 71

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

The callref uses a different value for the first digit (to differentiate between TX and RX) and the second value is the same (SETUP had a 0 for the last digit and CONNECT_ACK also has a 0). The router is completely dependent upon the PSTN or PBX to assign a Bearer channel (B- channel). If the PSTN or PBX doesn't assign a channel to the router, the call won't be routed. In our case, a CONNECT message is received from the switch with the same reference number as was received for ALERTING (0x800B). Finally, you can see the exchange of the DISCONNECT message followed by RELEASE and RELEASE _COMP messages as the call is being disconnected. RELEASE_COMP messages are followed by a cause ID for the call rejection. The cause ID is a hex value. The meaning of the cause can be found by decoding the hex value and following up with your provider.

*Mar 1

225209.694

ISDN Se115 TX -> SETUP pd = 8 callref = 0x000B

*Mar

1

225209.694

Bearer Capability i = 0x8090A3

*Mar 1

225209.694

Channel ID i = 0xA98381

*Mar

1

225209.694

Calling Party Number i = 0x2183, ’1001'

*Mar

1

225209.694

Called Party Number i = 0x80, ’3333'

*Mar 1

225209.982

ISDN Se115 RX <- ALERTING pd = 8 callref = 0x800B

*Mar 1

225209.982

Channel ID i = 0xA98381

*Mar 1

225210.674 ISDN Se115 RX <- CONNECT pd = 8 callref = 0x800B

*Mar 1

225210.678 ISDN Se115 TX -> CONNECT_ACK pd = 8 callref = 0x000B

*Mar 1

225215.058 ISDN Se115 RX <- DISCONNECT pd = 8 callref = 0x800B

*Mar 1

225215.058

Cause i = 0x8090 - Normal call clearing 225217 %ISDN-6

DISCONNECT Int S10 disconnected from unknown , call lasted 4 sec

*Mar 1

225215.058

ISDN Se115 TX -> RELEASE pd = 8 callref = 0x000B

*Mar 1

225215.082 ISDN Se115 RX <- RELEASE_COMP pd = 8 callref = 0x800B

*Mar

1 225215.082

Cause i = 0x829F - Normal, unspecified or Special intercept, call blocked group

restriction

Cisco IOS Gateway with T1/CAS Interface

As explained earlier, there are two types of calls going through the Cisco IOS Gateways: the Cisco IOS Gateway interface to the PSTN or PBX with either T1/CAS or T1/PRI interfaces. The following are the debug outputs when the Cisco IOS Gateways has T1/CAS interface. The “debug cas” on the Cisco IOS Gateway has been turned on.

The following debug message shows that the Cisco IOS Gateway is sending an off-hook signal to the switch.

Apr 5 17:58:21.727: from NEAT(0): (0/15): Tx LOOP_CLOSURE (ABCD=1111)

The following debug message indicates the switch is sending wink after receiving the loop closure signal from the Cisco IOS Gateway.

Apr 5 17:58:21.859: from NEAT(0): (0/15): Rx LOOP_CLOSURE (ABCD=1111)

Apr 5 17:58:22.083: from NEAT(0): (0/15): Rx LOOP_OPEN (ABCD=0000)

The following debug message indicates the Cisco IOS Gateway is going off-hook. Apr 5 17:58:23.499: from NEAT(0): (0/15): Rx LOOP_CLOSURE (ABCD=1111)

© 2000 Cisco Systems, Inc.

71

Page 70 Page 72
Image 71
Page 70 Page 72
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 ClusterPartition Flow Full duplex 711 729 225 245 323 Half Duplex HookflashJitter Law mu-law Silence Suppression Voice Activation Detection 931Route Filter Route Group Route List Route Pattern 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 IdentifierLatency experienced during this connection Lost RTP packets during this connectionInterarrival jitter 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.

The Cisco Systems 30 VIP stands as a cornerstone for next-generation networking features, providing organizations with significant advantages in speed, reliability, and scalability. At the heart of the 30 VIP are key technologies such as advanced routing protocols and enhanced security measures that ensure seamless data transfer across multiple devices.

Main features of the Cisco Systems 30 VIP include its high throughput capabilities, which support accelerated data processing and lower latency. This is crucial for businesses that rely on real-time data exchange and cloud applications. Additionally, the device incorporates Multi-Protocol Label Switching (MPLS) technology, which optimizes data flow between networks and significantly enhances overall performance.

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.
Top Page Image Contents