background image

 

4-10

Administrator Guide for Cisco Unified MeetingPlace H.323/SIP IP Gateway Software Release 5.2.1

OL-6571-02

Chapter 4      Troubleshooting Cisco Unified MeetingPlace H.323/SIP IP Gateway Software Release 5.2.1

Troubleshooting Audio Problems

Summary of Contents for Unified MeetingPlace H.323/SIP

Page 1: ...t Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 526 4100 Administrator Guide Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Revised April 2006 Text Part Number OL 6571 02 ...

Page 2: ...INCLUDING WITHOUT LIMITATION LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES CCIP CCSP the Cisco Arrow logo the Cisco Powered Network mark Cisco Unity Follow Me Browsing FormShare and StackWise are trademarks of Cisco Systems Inc Changing the Way We Work Live Play and L...

Page 3: ... SIP IP Gateway Software Release 5 2 1 1 6 How PSTN and Cisco IP Phones Communicate by Using Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 1 7 How H 323 Clients and Cisco SIP IP Phones Communicate by Using Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 1 9 Additional References 1 10 C H A P T E R 2 Installing Cisco Unified MeetingPlace H 323 SIP IP ...

Page 4: ...ateway Software Release 5 2 1 for Use With an H 323 Gatekeeper 3 5 Verifying MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Configuration 3 6 Information About Configuring Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 for Use With Cisco Unified MeetingPlace Web Conferencing 3 7 How to Configure Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 ...

Page 5: ...Is Heard 4 6 Unable to Dial Out on IP Ports 4 6 Checking the Cisco Unified MeetingPlace Audio Server System When Unable to Dial Out on IP Ports 4 7 Checking the Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Server When Unable to Dial Out on IP Ports 4 7 Checking Cisco Unified CallManager When Unable to Dial Out on IP Ports 4 8 Troubleshooting Audio Problems 4 8 Poor or Low...

Page 6: ...Contents vi Administrator Guide for Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 OL 6571 02 ...

Page 7: ...eway Software Release 5 2 1 is referred to as Release 5 2 1 Audience This guide is for network and telephony system administrators who are responsible for installing and configuring Release 5 2 1 for use with the Cisco Unified MeetingPlace system Scope Administrator Guide for Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 provides information about Release 5 2 1 that enable...

Page 8: ...g naming conventions are used in this guide New Features in This Release Release 5 2 1 includes the following new features Product Naming Convention Cisco Unified MeetingPlace Audio Server release and hardware upon which the release is installed Cisco Unified MeetingPlace Audio Server system Cisco Unified MeetingPlace Audio Server with any possible combinations of integration applications Cisco Un...

Page 9: ...te If you are using an IP PBX that runs standard H 323 or SIP call control see the Information About Configuring Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 section on page 3 1 for the required system settings and see your IP PBX documentation for information about how to configure these settings Cisco Unified MeetingPlace System Consisting of the Cisco Unified MeetingPl...

Page 10: ...ds That are Supported by Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 page 1 4 Protocols That Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Uses page 1 5 Dual Tone Multi Frequency Support by Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 page 1 5 Audio Quality During a Cisco Unified MeetingPlace Meeting page 1 6 Standards T...

Page 11: ...ified CallManager and Release 5 2 1 The protocol suite which extends H 225 for call signaling and H 245 for data transfer is used in the successful acceptance and media exchange of data Session Initiation Protocol SIP A call control protocol that supports all existing functionality that is available to a Cisco IP phone Release 5 2 1 complies with RFC 3261 and RFC 3515 specifications and interopera...

Page 12: ...n audio congestion and disruption of service In general a switched 100 Mbps network handles VoIP traffic efficiently To alleviate potentially disruptive service and to improve audio quality consider implementing class of service CoS and quality of service QoS When the server handles over 400 ports of IP calls voice quality degradation can occur because of network congestion CoS is a technology tha...

Page 13: ... directing the call to the called device and sending network information such as the IP address UDP port number and communication capabilities of the called device to the Cisco IP phone After receiving the information the Cisco IP phone sends its digitized voice traffic directly to the called device The following steps describe how Cisco IP phones and PSTN phones use Release 5 2 1 to access the Ci...

Page 14: ...er and the caller hears a fast busy signal c If the call is accepted Cisco Unified CallManager and Release 5 2 1 use H 245 to negotiate which codec will carry the voice activity Release 5 2 1 uses G 711 or G 729a to carry the encoded speech d Once codec negotiation is complete Release 5 2 1 uses the Gateway SIM to retrieve an IP address and UDP port number from the Cisco Unified MeetingPlace Audio...

Page 15: ...hone 2 The H 323 device and Release 5 2 1 communicate by using H 323 The Cisco SIP IP phone through Cisco SIP Proxy Server and Release 5 2 1 communicate by using SIP a The H 323 device or Cisco SIP IP phone and Release 5 2 1 determine if the Cisco Unified MeetingPlace Audio Server system can accept the call By using the Gateway SIM the Release 5 2 1 communicates directly with the Cisco Unified Mee...

Page 16: ...nified MeetingPlace Release 5 3 http www cisco com en US products sw ps5664 ps5669 prod_installation_guides_list html Release Notes for Cisco Unified MeetingPlace Audio Server Release 5 3 http www cisco com en US products sw ps5664 ps5669 prod_release_notes_list html Release Notes for Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 http www cisco com en US products sw ps5664...

Page 17: ...lete Prerequisites for Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Installation or Upgrade Verify that your system meets the requirements listed in the Release Notes for Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Complete the Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Installation Worksheet section on page A 1 and C...

Page 18: ... gateway server uses these ports to send dynamic TCP and UDP traffic to Cisco Unified CallManager Before you can install and configure Release 5 2 1 you must configure Cisco Unified CallManager to point to your IP gateway server To configure Cisco Unified CallManager you must first add a gateway the assign the gateway to a route pattern To configure Cisco Unified CallManager for use with Release 5...

Page 19: ...e or IP address of the IP gateway server Device Pool Specifies a collection of properties for this device including Cisco Unified CallManager Group Date Time Group Region and Calling Search Space for autoregistration of devices Choose Default Locations Specifies the total bandwidth that is available for calls to and from this location A location setting of None means that the locations feature doe...

Page 20: ...the IP gateway server and to include exclude or modify specific digit patterns Tip Assigning 8XXX to a gateway routes all directory numbers 8000 to 8999 out the gateway Similarly 82XX routes directory numbers 8200 to 8299 Step 1 If applicable ensure that you have configured the following items in Cisco Unified CallManager Gateway Route list Partition Route filter Step 2 In the Cisco Unified CallMa...

Page 21: ...ction includes the following procedures Installing Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 page 2 6 Upgrading to Cisco Unified MeetingPlace H 323 SIP IPGW Software Release 5 2 1 From Cisco Unified MeetingPlace IP Gateway Release 5 x page 2 6 Upgrading to Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 From Cisco Unified MeetingPlace IP Gateway ...

Page 22: ...Unified MeetingPlace Gateway SIM InstallShield Wizard begins install and configure Gateway SIM by completing the steps in the Configuring Cisco Unified MeetingPlace Gateway SIM section on page 2 7 Step 8 To complete installation click Finish Step 9 If prompted reboot the IP gateway server Step 10 If you plan to install Cisco Unified MeetingPlace system integration applications on the Release 5 2 1...

Page 23: ...etingPlace IP Gateway and click Remove Note Uninstalling Cisco Unified MeetingPlace IP Gateway 4 x may also uninstall any previous Cisco Unified MeetingPlace GWSIM release Step 4 Install Release 5 2 1 by using the procedures in How to Install or Upgrade to Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 section on page 2 5 Configuring Cisco Unified MeetingPlace Gateway SIM G...

Page 24: ...rvice and choose Stop Step 3 Choose Start Programs MeetingPlace Applications MeetingPlace Gateway Configuration The Cisco Unified MeetingPlace Gateway Configurations dialog box appears Step 4 From the list on the left select the name of the Cisco Unified MeetingPlace Audio Server system Step 5 Click Delete Step 6 Click Add The MeetingPlace Server Entry dialog box appears Step 7 Enter the configura...

Page 25: ...WSIM and choose Start Uninstalling Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Caution Before you uninstall Release 5 2 1 ensure that you have configured Cisco Unified CallManager to route calls to another IP gateway Step 1 To stop all Cisco Unified MeetingPlace services choose Start Programs Administrative Tools Services Step 2 Right click on each Cisco Unified MeetingP...

Page 26: ...Place H 323 SIP IP Gateway Software Release 5 2 1 OL 6571 02 Chapter 2 Installing Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 How to Install or Upgrade to Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 ...

Page 27: ... page 3 7 How to Configure Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 for Use With Cisco Unified MeetingPlace Web Conferencing page 3 7 Information About Configuring Multiple Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Servers for Load Balancing and Redundancy page 3 8 Information About Configuring a Dialing Group page 3 8 How to Configure a D...

Page 28: ...ced by using H 323 or SIP Note In mixed H 323 SIP call control environments you must select one protocol for outdials otherwise the default protocol will be used H 323 Verbose Logging Sets the level of logging information Normal H 323 Settings Enabled Enables or disables the H 323 protocol Yes Max Number of Callers Maximum number of H 323 callers Release 5 2 1 accepts 960 E 164 Address A dialable ...

Page 29: ...Configuration page 3 6 Note Release 5 2 1 supports concurrent incoming H 323 and SIP calls however you must configure the Release 5 2 1 to use one protocol either H 323 or SIP to dial out SIP Settings Enabled Enables or disables the SIP protocol Yes Max Number of Callers Maximum number of SIP callers Release 5 2 1 accepts 960 Display Name Display name of the IP gateway server that is used for SIP ...

Page 30: ...titude MeetingPlace IP Gateway Use the settings in Table 3 2 to configure Release 5 2 1 for use with Cisco Unified CallManager Step 3 To accept the settings click Submit Step 4 Restart the IP gateway server Configuring Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 for Use With Cisco SIP Proxy Server Note Release 5 2 1 does not support out of band digit detection with SIP S...

Page 31: ...vice Step 1 From the IP gateway server choose Start Programs MeetingPlace Applications MeetingPlace Management Step 2 Double click the Cisco Unified MeetingPlace IP Gateway icon The Cisco Unified MeetingPlace IP Gateway Management Console opens Tip You can also access Release 5 2 1 configuration settings through the Registry Editor by navigating to HKEY_LOCAL_MACHINE SOFTWARE Latitude MeetingPlace...

Page 32: ...isco Unified MeetingPlace IP Gateway Step 3 To verify that the IP gateway server is logging in telnet to the Cisco Unified MeetingPlace Audio Server system Step 4 To verify that the IP gateway server status is OK enter gwstatus Note It can take up to five minutes for gwstatus to update therefore any recent changes to the gateway may not be reflected Step 5 Verify that you can access the Cisco Unif...

Page 33: ... Cisco Unified MeetingPlace system integration applications on the same server ensure that your system meets the requirements for integration For additional information see Important Information About Cisco Unified MeetingPlace Products and Cisco Media Convergence Servers at the following URL http www cisco com univercd cc td doc product conf mtgplace mpmcs htm How to Configure Cisco Unified Meeti...

Page 34: ...way server For information about configuring route groups see to the Redundancy Chapter in the Cisco Unified CallManager System Guide for your software release at the following URL http www cisco com univercd cc td doc product voice c_callmg index htm Information About Configuring a Dialing Group Dialing groups customize the Cisco Unified MeetingPlace Audio Server system by presenting specific voi...

Page 35: ...E Presents no digits to the server Step 7 Repeat Step 4 through Step 6 until the file contains one line for each dialing group that you want to configure Step 8 Save and close the dialgroups txt file Step 9 Restart the IP gateway server Configuring a Dialing Group Example The following is a sample dialgroups txt file that shows callers who dial extension 2121 are forwarded to meeting ID 656565 Cal...

Page 36: ...ateways must support the Session Initiation Protocol SIP Refer Method RFC 3515 to use the Reservationless Single Number Access feature Information About Reverse Connection to the MeetingPlace Audio Server System Configuration The Cisco Unified MeetingPlace Audio Server system can initiate a reverse connection eliminating the need for incoming port 5003 to be open on the Cisco Unified MeetingPlace ...

Page 37: ...ace Audio Server system Step 1 To verify that Release 5 2 1 services are running choose Start Settings Control Panel Services from the IP gateway server Step 2 Make sure the following services are started Cisco Unified MeetingPlace Gateway SIM Cisco Unified MeetingPlace IP Gateway Step 3 To verify that the IP gateway server is logging in telnet to the Cisco Unified MeetingPlace Audio Server system...

Page 38: ... Unified MeetingPlace Audio Server System When IP Calls Connect But No Audio Is Heard page 4 5 Checking the Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 When IP Calls Connect But No Audio Is Heard page 4 6 Checking the Cisco IP Phone When IP Calls Connect But No Audio Is Heard page 4 6 Unable to Dial Out on IP Ports page 4 6 Checking the Cisco Unified MeetingPlace Audio S...

Page 39: ...CallManager Corrective Action To resolve a fast busy signal problem verify that the configuration information that you entered in the Assigning a Cisco Unified CallManager Route Pattern to Point to the Cisco Unified MeetingPlace H 323 SIP IP Gateway Release Release 5 2 1 Server section on page 2 4 is correct To verify the configuration perform the following steps Step 1 In the Cisco Unified CallMa...

Page 40: ...r the output b Make another test call c Verify that the incoming call is seen by the server Step 5 Check for warnings and alarms especially those that occur in cpiphandler cc by performing the following steps a At the tech prompt enter the viewexlog s info l more command b Scroll through the log by entering f Step 6 At the tech prompt enter gwstatus to verify that both the Cisco Unified MeetingPla...

Page 41: ...ther network devices to which the MA 16 connects directly is set to fixed 100Base TX Full Duplex Step 2 Verify that the subnet mask address is correct by entering the blade command If it is not correct Cisco Unified MeetingPlace Audio Server system will not be able to send voice packets to the phone Restart the Cisco Unified MeetingPlace Audio Server system for any changes to take effect Step 3 At...

Page 42: ...Place Gateway SIM eventlog verify that the following log entries have the correct IP address of the IP phone Remote RTP info IP 10 10 10 3 Port 6510 Remote RTCP info IP 10 10 10 4 Port 6511 Step 3 Ping the IP addresses of all MA 16 blades and of the IP phone Checking the Cisco IP Phone When IP Calls Connect But No Audio Is Heard Step 1 Press the blue i button quickly twice Step 2 Verify that the p...

Page 43: ...mixed PSTN and IP systems Step 4 At the tech prompt enter cptrace T 5 Step 5 While monitoring the output of the trace command make a test call Step 6 At the tech prompt enter viewexlog s info l more Tip Enter f to move forward in the log Step 7 Check for warnings and alarms especially those that occur in cpiphandler cc and cpplacecall cc Step 8 At the tech prompt enter activity Step 9 Choose optio...

Page 44: ... quality headset with the Cisco IP phone Corrective Action Reduce the speaker volume to a volume that is comfortable but not loud enough to cause feedback from the microphone back to the other end of the call Corrective Action Use a headset that is approved by Cisco Systems Possible Cause Cisco IP phone audio settings need adjustment Corrective Action During a meeting on a Cisco 7960 press the blu...

Page 45: ... caller is using a low quality headset with Cisco IP phone Corrective Action Reduce the speaker volume to a volume that is comfortable but not loud enough to cause feedback from the microphone back to the other end of the call Corrective Action Use a headset that is approved by Cisco Systems Possible Cause Cisco IP phone audio settings need adjustment Corrective Action Lower the volume Voice quali...

Page 46: ... Guide for Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 OL 6571 02 Chapter 4 Troubleshooting Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Troubleshooting Audio Problems ...

Page 47: ... complete the following worksheet You need to supply these values when you install and configure Release 5 2 1 Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Installation Worksheet Description Value 1 Hostname or IP address of the IP gateway server host name IP address ____________________________ ____________________________ 2 Number of the IP gateway server dialable numbe...

Page 48: ...ingPlace Audio Server system Up to four additional IP addresses are needed for the Multi Access blade If a TP1610 Multi Access blade is in use but only 240 VoIP or fewer are deployed then you must specify the lower address the upper address can be set to 0 0 0 0 You must also set the Ethernet switch port or any other network devices to which the Multi Access blade connects directly to fixed 100Bas...

Page 49: ...e H 323 SIP IP Gateway Software Release 5 2 1 Dial Plan Worksheet Use the following worksheet to create a a dial plan MeetingPlace IP call flow Value 1 From an IP phone to the IP gateway server If the IP gateway server is busy Cisco Unified CallManager can forward calls to Cisco Unified MeetingPlace system PSTN through a voice gateway You must configure Cisco Unified CallManager and the voice gate...

Page 50: ...23 SIP IP Gateway Software Release 5 2 1 OL 6571 02 Appendix A Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Installation Worksheets Information About the Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 Dial Plan ...

Page 51: ...ied MeetingPlace H 323 SIP IP Gateway about 1 1 1 4 components 1 3 configuring about 3 1 multiple servers 3 8 verifying 3 6 installation 2 1 installation worksheet A 1 troubleshooting with Cisco Unified MeetingPlace H 323 SIP IP Gateway 4 1 uninstalling 2 9 upgrading 2 6 using with Cisco SIP Proxy Server 3 4 Cisco Unified CallManager 3 4 Cisco Unified MeetingPlace Web Conferencing 3 7 H 323 client...

Page 52: ...way Software 1 4 gateways adding 2 2 configuring 2 4 H H 323 clients 1 9 Gatekeeper configuring 3 5 protocol 1 5 I installing Cisco Unified MeetingPlace Gateway SIM 2 7 Cisco Unified MeetingPlace H 323 SIP IP Gateway 2 1 L load balancing with Cisco Unified MeetingPlace H 323 SIP IP Gateway 3 8 M MeetingPlace see Cisco Unified MeetingPlace P protocols about 1 5 Cisco Unified MeetingPlace Gateway SI...

Page 53: ...l see protocols T telephony standards supported 1 4 troubleshooting audio problems 4 8 caller connectivity 4 2 Cisco IP phones 4 3 Cisco Unified MeetingPlace H 323 SIP IP Gateway 4 1 dead air with Cisco IP phone 4 3 network connectivity 4 1 U uninstalling Cisco Unified MeetingPlace H 323 SIP IP Gateway 2 9 upgrading Cisco Unified MeetingPlace H 323 SIP IP Gateway 2 6 V voice gateway 1 6 ...

Page 54: ...Index IN 4 Administrator Guide for Cisco Unified MeetingPlace H 323 SIP IP Gateway Software Release 5 2 1 OL 6571 02 ...

Reviews: