Cisco IOS Voice Troubleshooting and Monitoring Guide, Release 1.Troubleshooting Digital Voice Interfaces to the IP Network Cisco IOS Software Releases 1.Mainline Troubleshooting Digital Voice Interfaces to the IP Network Digital voice ports are found at the intersection of a packet voice network and a digital, circuit switched telephone network.Martin Place Locksmiths provide fast Commercial and Residential locksmith solutions to the entire Sydney area.Available 247 Emergencys Call 0404 460 944.Mindspark Interactive.Help Uninstall EULA Privacy.Digital voice telephony interfaces include T1 or E1 channel associated signaling CAS, ISDN primary rate interface PRI or basic rate interface BRI, and E1 R2 signaling.To troubleshoot digital voice interfaces, see the following sections Checking the Hardware Checking the Digital Signal Processors Verifying Codec Complexity Checking the Interface Verifying Digital Voice Port Configurations Voice Port Testing Commands If you are troubleshooting a connection to a PBX, you might the PBX interoperability notes useful.These notes contain configuration information for Cisco gateways and several types of PBXs.To access these notes, use the following website http www.Checking the Hardware Digital voice interface hardware connects a router or access server to a line from a circuit switched telephony device in a PBX or the public switched telephone network PSTN.Troubleshoot digital voice hardware by checking the following Software Compatibility Cabling Shutdown Port Software Compatibility To ensure that your card is compatible with your software, check the following For network modules inserted into Cisco modular access routers, refer to the compatibility tables in the Overview of Cisco Network Modules chapter in the.Cisco Network Modules Hardware Installation Guide.Digital-Wall-Clock-with-Timer-768x768.jpg' alt='24 Hour Digital Clock Software' title='24 Hour Digital Clock Software' />For interface cards inserted into Cisco modular access routers, refer to the compatibility tables in the Overview of Cisco Interface Cards chapter in the.Cisco Interface Cards Installation Guide.Cabling Cabling for the digital ports varies by platform Cisco 1.Cisco 1.Cisco 2.Cisco 3. 60.Cisco 3.Cisco ICS 7.Multiflex Trunk Interface card use an RJ 4.C cable.Refer to the.Cisco Interface Card Hardware Installation Guide for information about digital Cisco interface cards.Cisco 7.VXR platforms use RJ 4.C cables for the port adapter.See the.MIX Multichannel T1E1 Port Adapter Installation and Configuration Guide for more information.Cisco AS5.RJ 4.Prod_503/Timers_88350914.jpg' alt='24 Hour Digital Clock Software' title='24 Hour Digital Clock Software' />The 12hour clock is a time convention in which the 24 hours of the day are divided into two periods a.Latin, ante meridiem, meaning before midday and.SKU205108/8.jpg' alt='24 Hour Digital Clock Software' title='24 Hour Digital Clock Software' />T1 or E1 interface.A Vo.IP feature is also required for voice traffic.See the.Cisco AS5.Module Installation Guide.Cisco AS5.RJ 4. 5 cables for the four port card and a 3.RJ 4.For more information about cabling these platforms, see the Cabling Specifications chapter of the.Cisco AS5.AS5.Universal Gateway Card Installation Guide.T1E1 Trunk and Digital Voice Port Pinouts RJ 4.Figure 3.RJ 4.T1E1 trunk cable and the digital voice port cable Table 3.Figure 3.RJ 4.RJ 4. 8 T1E1 Cable Wiring Table 3.Pinouts for T1E1 Trunk and Digital Voice Port RJ 4.Signal.RX input 2 RX input 3 4 TX output 5 TX output 6 7 8 T1E1 Trunk and Digital Voice Port Pinouts RJ 4.Table 3.T1 or E1 Port Pinouts RJ 4.RJ 4. 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Description.RX tip 2 RX ring 3 RX shield 4 TX tip 5 TX ring 6 TX shield 7 8 Shutdown Port If the port is not operational, check to make sure the port is not shut down.Enter the show voice port command with the voice port number that you are troubleshooting, which tells you If the voice port is up.If it is not, use the no shutdown command to make it active.What parameter values have been set for the voice port, including default values.If these values do not match those of the telephony connection you are making, reconfigure the voice port.Checking the Digital Signal Processors Digital signal processors DSPs enable Cisco platforms to efficiently process digital voice traffic.The following symptoms can be attributed to DSP hardware or software issues No audio heard by either party or one way audio on the voice path after the call is connected.Call setup failure, such as the inability to detect or transmit proper Channel Associated Signaling CAS state transitions.Channels are stuck in the PARK state and cannot be used.Error messages on the console or in the router log complain of DSP timeouts.To check your DSPs, use the following sections Voice DSP Control Message Logger Voice Call Tuning Voice DSP Crash Dump File Analysis Troubleshooting Universal Port SPEs DSP Troubleshooting Links Voice DSP Control Message Logger This section contains the following information Message Logger Overview Configuration Tasks Configuration Examples.Caution Using the logger feature in a production network environment increases CPU and memory usage on the gateway.Note We recommend that you work closely with your Cisco representative to use this feature.If you are experiencing problems with certain voice calls, the engineering team at Cisco might ask you to capture the control messages using the voice DSP logger.You can capture these messages by turning on the logger, repeating the problematic calls, and capturing the logs.Only Cisco engineers can determine if you should send the logs in for further review.Message Logger Overview The Voice DSP Control Message Logger feature provides improved debugging capabilities through Cisco IOS software and allows loggin of control messages that pass through the voice DSP firmware on the host port interface HPI.The logged messages can later be examined for diagnosis of voice problems.There are two main types of HPI messages that flow through the HPI interface control messages and data messages.Control messages carry control information between Cisco IOS software and the DSP.Data messages carry voice data.The Voice DSP Contol Message Logger feature captures control messages sent between the platform independent portions of Cisco IOS software and the DSP.The HPI subsystem that is in Cisco IOS software contains the platform independent portion of Cisco IOS software.This feature addresses the sequence and contents of the control messages.The logged messages can be checked for parameters that might cause undesirable DSP behavior including the following Incorrect parameters Out of sequence function calls Interactions between parameters of different HPI calls In many cases, DSP problems have been the result of bad control messages.By logging all of these messages for offline analysis, you can better integrate and debug at speed issues for analysis.Message Capture Message capture occurs when voice control messages are captured and passed between the Cisco IOS software and the DSP to a ring buffer.Some of these messages are sent in fast path routines that run at a high priority, so the capture of the message must be done as quickly as possible.After the fast path routine messages have been sent, a normal priority process sends the messages that are waiting in the ring buffer to off router data storage through the Cisco IOS File System IFS.How To Make Mobile Themes Software Upgrade here.
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