Example 7-4 T38 Fax Relay Mode | Cisco Systems 186, 188 guide

Chapter 7 Configuring and Debugging Fax Services

Debugging the Cisco ATA 186/188 Fax Services

[ 136]<3.200=>2.53> Codec G711u/D

[ 137]<3.200=>2.53> NSE PT 100, EVT 192: Up-Speed, CED tone Detected [ 140]<2.53=>3.200> Codec G711u/D

Analysis

•Both sides initially use G.723.

•<3.200> switches to G.711µ-law using a dynamic payload type.

•NSE signaling packets are sent from <3.200>.

•<2.53> switches to G.711µ-law using a dynamic payload type.

Example 7-4 T38 Fax Relay Mode


----------	FAX Summary 1 ----------
[	15]<2.53=>3.99> Codec G711u
[	486]<3.99=>2.53> Codec G711u
[ 1277]<3.99=>2.53>		Codec T38
[ 1278]<2.53=>3.99>		Codec T38

Analysis

•Both sides initially use G.711µ-law.

•Both sides switch to T.38

Example 7-5 Cisco Fax Relay

----------	FAX Summary 1 ----------
[	8]<2.53=>3.99>	Codec G711u
[	248]<3.99=>2.53>	Codec G711u
[	798]<2.53=>3.99>	NSE PT 96, Cisco Fax Relay
[	799]<3.99=>2.53>	NSE PT 97, EVT 192: Up-Speed, CED tone Detected
[	800]<2.53=>3.99>	NSE PT 97, Cisco Fax Relay ACK
[	801]<2.53=>3.99>	Codec C_FxRly
[	803]<3.99=>2.53>	NSE PT 96, EVT 192: Up-Speed, CED tone Detected
[	804]<2.53=>3.99>	NSE PT 97, Cisco Fax Relay ACK
[	805]<3.99=>2.53>	Codec C_FxRly

Analysis

•Both sides initially use G.711µ-law.

•NSE signaling packets are sent between <2.53> and <3.99>.

•Both sides switch to Cisco fax relay.

Using rtpcatch to Analyze Common Causes of Failure

The following examples show the rtpcatch output of failed fax sessions. <3.200> is ATA; <2.53> is a Cisco gateway.

Example 7-6 Cisco ATA Configuration Failure

	----------	FAX Summary 1 ----------
		Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SIP)

	OL-3410-01			7-17
	OL-3410-01			7-17

Image 149

Cisco Systems 186, 188 manual Using rtpcatch to Analyze Common Causes of Failure, Example 7-4 T38 Fax Relay Mode

Contents

Text Part Number OL-3410-01 Corporate Headquarters Copyright 2003, Cisco Systems, Inc All rights reserved Iii N T E N T S What You Need Dial Plan Disabling Access To The Web Interface Dhcp Vii DNS1IP DNS2IP Viii Action Identifiers Debugging Environmental Specifications C-2 Overview PrefaceAudience This preface includes the following sections Conventions OrganizationChapter Description Xii Xiii Xiv Related Documentation World Wide Web Obtaining DocumentationDocumentation CD-ROM Ordering Documentation Cisco.com Obtaining Technical AssistanceTechnical Assistance Center Xvi Xvii Cisco TAC Web SiteCisco TAC Escalation Center Xviii Cisco ATA Analog Telephone Adaptor Cisco Analog Telephone Adaptor Overview Pstn Session Initiation Protocol SIP Overview Components of SIP SIP Capabilities SIP Servers SIP Clients Link LED Hardware Overview Function Button Voice Codecs Supported Software Features Other Supported Protocols Additional Supported Signaling ProtocolsCisco ATA SIP Services Methods Supported Fax ServicesRegister Invite BYE Cancel Supplementary Services Installation and Configuration OverviewNotify Options ACK Action Reference Installing the Cisco ATA What the Cisco ATA Package Includes Safety RecommendationsNetwork Requirements What You Need Installation Procedure5V power adaptor Power cord Cisco ATA 186 Rear Panel Connections Procedure Installing the Cisco ATA Installation Procedure Power-Down Procedure Configuring the Cisco ATA for SIP Default Boot Load Behavior OpFlags Parameter and Bits Reference Feature VLANSettingBits Example Basic Configuration Steps in a Tftp Server Environment Steps Needed to Configure the Cisco ATA Configure the method with which the Cisco ATA will locate Basic Configuration Steps in a Non-TFTP Server EnvironmentTftp server at boot up time Action Configurable Features and Related Parameters Configuring the Cisco ATA Using a Tftp ServerSetting Up the Tftp Server with Cisco ATA Software Creating Unique and Common Cisco ATA Configuration Files Syntax Save this file of Cisco ATA-specific parameters as Command Example Using atapname.exe Tool to Obtain MAC Address Syntax examples Using the EncryptKey Parameter and cfgfmt ToolCommand Output Atadefault.cfg Configuration File Using a Dhcp Server, Using a Dhcp Server Other Dhcp Options You Can Set DNS1IP DNS2IP Ntpip Voice Configuration MenuWithout Using a Dhcp Server Dhcp Using the Voice Configuration MenuVoice Menu Number Features Voice Menu Number Entering Alphanumeric Values Key Alphanumeric Characters Cisco ATA Web ConfigurationResetting the Cisco ATA to Factory Default Values Page UID0 Refreshing or Resetting the Cisco ATA Procedure to Reset the Cisco ATA Upgrading the SIP Signaling ImageProcedure to Refresh the Cisco ATA Required Parameters Basic and Additional SIP ServicesImportant Basic SIP Services Related Configuration Parameters Establishing Authentication Configuring Refresh Interval Additional SIP ServicesSetting the Codec Related Parameters Advanced Audio ConfigurationBillable Features Configurable Hook Flash Timing Comfort Noise During Silence Period When Using G.711Configurable Mixing of Call Waiting Tone and Audio Configurable On-hook delay Dial Plan Disabling Access To The Web InterfaceDistinctive Ringing DNS SRV Support NAT/PAT Translation Hardware Information DisplayNAT Gateway Progress Tones Network TimingOutBoundProxy Support Receiver-tagged VIA header Repeat Dialing on Busy Signal User Configurable Timeout On No Answer for Call Forwarding User Configurable Call Waiting Permanent Default SettingSIP Proxy Server Redundancy Stuttering Dial Tone on Unconditional Call Forward Configuration Setting Up and Placing a Call Without Using a SIP ProxyTo deactivate this feature, enter the following Open your Web browser Dial Format Complete Reference Table of all Cisco ATA SIP ServicesPlacing an IP Call OL-3410-01 Configurable Feature Related Parameter Configurable Feature Related Parameter OL-3410-01 Parameters and Defaults Configuration Text File Template User Interface UI Parameter UIPasswordSections that follow describe these parameters Range Parameters for Configuration Method Configuration ParameterToConfig UseTFTP CfgInterval Range Default Voice Configuration Menu Access CodeTftpURL EncryptKey Network Parameters IP address StaticIpStaticRoute 255.255.255.0 Account Information ParametersStaticNetMask UID0 This parameter is the password for the Phone 1 port GkOrProxy This parameter is the password for the Phone 2 port Gateway UseLoginIDGateway2 Not applicable to SIP This parameter is the Login ID for line LoginID0LoginID1 AltGkTimeOut Backup Server ParametersAltGk Integer GkTimeToLive SIP ParametersGkId UseSIP 205 SIPRegIntervalMAXRedirect Natip SIPRegOn OutBoundProxy SIPPortMediaPort NatServer Is the default port if no port is specifiedIP address or Fqdn format 207 Operating Parameters NatTimerBitmap 208 AudioMode LBRCodec300 0x00150015 Bit Number Definition RxCodec NumTxFrames TxCodec Clipclir CallFeatures First calling that number and consulting with the callee PaidFeatures315 Examples CallerIdMethod 316 FeatureTimer0x00019e60 0x00000000 Polarity317 304 RTP ConnectMode Bit Number Definition TimeZone AutMethodThis parameter is not used for SIP 302 916 AltNTPIP142 917 SigTimer0xB8 0x01418564 Default-5 seconds Default 100 0x64=100 secondsRange 0 to 255 in 0.1 seconds Range 0 to 62 in seconds 0x2 OpFlags VLANSetting Optional Feature Parameters0x0000002b 324 Extended IP address NPrintfTraceFlags RingOnOffTime Default Recommended Values DialPlan IPDialPlan Additional DialPlan Information About Dial Plan Commands Following dial plans Following dial plan Rule to Support Hot/Warm Line Dial Plan Blocking In Rule Rule to Support Dial Prefix Call-Progress Tone ParametersList of Call-Progress Tone Parameters Tone Parameter Syntax Use the following formula to calculate the scaling factor a How to Calculate Scaling Factors Specific Call-Progress Tone Parameter Information Default values for the nine-integer arrayRecommended Values On-time-0 Off-time-0 Total time to play tone-1000 Cisco ATA plays the busy tone when the callee is busy920 921 923 Off-time-2000 Total time to play tone-0922 Off-time-2400 Total time to play tone-4800 CallCmd924 925 930 Maximum of 248 characters Call Command Structure Call Commands CallCmd string has the following structure Syntax Identifier Context State of Cisco ATA Context-Identifiers Action Identifiers Input Sequence IdentifiersIdentifier Input Sequence Identifier Action Call Command Example Hook-flash Cancel-the-call-attempt Retrieve-the-waiting-call Call Command Default Call Command BehaviorSweden Call Command Default Table Notations Call Command Behavior CWT WFE cancels the call-Stop CWT and revert to Connected state Call Command Behavior Call Command Behavior OL-3410-01 Using Fax Pass-through Mode Configuring and Debugging Fax Services This setting translates to the following bitmap Configuring the Cisco ATA for Fax Pass-through modeAudioMode Translation Recommended Setting Configuring Cisco IOS Gateways to Enable Fax Pass-throughThis setting translates to the bitmap ConnectMode Run the following command Enable Fax Pass-through Mode Perform the command Disable Fax Relay Feature Configuring the Cisco ATA for Fax Mode Using FAX Mode Configuring the Cisco ATA for Fax Mode on a Per-Call Basis Debugging the Cisco ATA 186/188 Fax ServicesConfiguring the Cisco IOS Gateway for Fax Mode Common Problems When Using IOS Gateways Cisco ATA, and 0x0012XXXX for the Phone 2 port Problem ActionFor fax pass-through mode, AudioMode should be set to Port Analyzing prserv Output for Fax Sessions Using prserv for Diagnosing Fax ProblemsPrserv Overview Terminating-Gateway Example Log event Description Possible Reasons for Failure Originating-Gateway Example To use rtpcatch, follow these steps Using rtpcatch for Diagnosing Fax ProblemsRtpcatch Overview Output Files Example of rtpcatch Explanation CED tone Detected Analyzing rtpcatch Output for Fax Sessions Fax relay mode Cisco fax relay modeAnalysis Both sides use G.711 for the entire fax session Example 7-4 T38 Fax Relay Mode Using rtpcatch to Analyze Common Causes of Failure Possible Cause for Failure Cisco fax relay option is not disabled on the gatewayPossible Causes for Failure Rtpcatch Limitations Example 7-9 Fax Pass-through Mode Failure OL-3410-01 Upgrading the Signaling Image from a Tftp Server Upgrading the Cisco ATA Signaling ImageSyntax of upgradecode Parameter Definitions Process Upgrading the Signaling Image ManuallyUpgradecode parameter value could be Preliminary Steps Upgrade RequirementsRunning the Executable File Syntax To perform the upgrade, follow these steps Upgrade Procedure Using a Web Browser Confirming a Successful Signaling Image Upgrade OL-3410-01 General Troubleshooting Tips Troubleshooting Symptoms and Actions Installation and Upgrade Issues 2* 1 1* 2* 8* 1 1* 7* 8* 1 1* 9* 0* 1 1* 9* 0* 0 Debugging FACTRESET# Frequently Asked QuestionsRing Load per RJ-11 FXS Port Maximum Distance REN Contacting TAC Changing Call Commands Using SIP Supplementary ServicesCancelling a Supplementary Service Common Supplementary Services Voice Mail Indication Caller IDCall-Waiting Caller ID Fully Unattended Transfer Unattended TransferSemi-unattended Transfer Making a Conference Call in Sweden Attended TransferMaking a Conference Call in the United States Call Waiting in Sweden Call Waiting in the United StatesAbout Call Forwarding Call Forwarding in the United States Call Return in the United States Call Forwarding in SwedenCall Return in Sweden Calling Line Identification Presentation Calling Line Identification Restriction in Sweden Calling Line Identification Restriction in the United States OL-3410-01 Voice Menu Option Code Description Voice Menu CodesTable B-1lists codes to return basic Cisco ATA information PWD DNS 1 IPDNS 2 IP UID Tftp URLUser ID telephone number for the Phone 1 port User ID telephone number for the Phone 2 port Option Code Description Specification Cisco ATA SpecificationsPhysical Specifications Environmental Specifications Electrical SpecificationsImmunity Specifications Description Specification Physical Interfaces Ringing CharacteristicsSoftware Specifications Appendix C Cisco ATA Specifications Software Specifications Sccp SIP Compliance Reference Information OL-3410-01 Supported SIP Request Methods SIP Call Flows Step Action Description Cisco ATA-to-SIP Server-Registration without AuthenticationCall Flow Scenarios for Successful Calls Table D-2 Log Listings Cisco ATA-to-SIP Server-Registration with Authentication Table D-3 Action Descriptions Table D-4 Log Listings Invite Table D-5 Action Descriptions Table D-6 Log Listings Table D-6 Log Listings Table D-6 Log Listings Table D-6 Log Listings Trying Proxy Authentication Required ACK Table D-7 Action Descriptions Table D-8 Log Listings Table D-8 Log Listings Table D-8 Log Listings Table D-8 Log Listings Table D-8 Log Listings GL-1 GL-2 GL-3 Location services are offered by location servers Lightweight DirectoryAccess ProtocolLocal exchange carrier Media Gateway Control Protocol GL-5 Signaling connection control partMessages can be part of Sgcp and Mgcp messages GL-6 Traffic Business-class services for Internet telephonyAllow you to define your own customized markup language GL-7 GL-8 IN-1 D E IN-2 United States Call-progress tone parametersCfgInterval parameter IN-3 IN-4 Fax mode configuration 7-6,7-7 Forward-unconditionally setting Forward-on-no-answer settingFXS ports IN-5 IN-6 NatipNatip parameter IN-7 RJ-45 LED IN-8 SIP registration SIP registration enabled IN-9 Unconditional call forwarding Unique configuration file IN-10