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Polycom SIP 2.2.0 manual Session Initiation Protocol SIP

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Session Initiation Protocol (SIP)

This chapter provides a description of the basic Session Initiation Protocol (SIP) and the protocol extensions that are supported by the current SIP application. To find the applicable Request For Comments (RFC) document, go to http://www.ietf.org/rfc.html and enter the RFC number.

This chapter contains information on:

•Basic Protocols—All the basic calling functionality described in the SIP specification is supported. Transfer is included in the basic SIP support.

•Protocol Extensions—Extensions add features to SIP that are applicable to a range of applications, including reliable 1xx responses and session timers.

For information on supported RFC’s and Internet drafts, refer to the following section, RFC and Internet Draft Support.

This chapter also describes:

•Request Support

•Header Support

•Response Support

•Hold Implementation

•Reliability of Provisional Responses

•Transfer

•Third Party Call Control

•SIP for Instant Messaging and Presence Leveraging Extensions

•Shared Call Appearance Signaling

•Bridged Line Appearance Signaling

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Polycom SIP 2.2.0 manual Session Initiation Protocol SIP

Contents

SIP Copyright Notice DisclaimerAbout This Guide Administrator’s Guide SoundPoint IP / SoundStation IP Contents Administrator’s Guide SoundPoint IP / SoundStation IP Troubleshooting Your SoundPoint IP / SoundStation IP Phones Viii Contents Administrator’s Guide SoundPoint IP / SoundStation IP SoundStation IP Conference Phone SoundPoint IP Desktop PhonesIP 320/330 IP 600/601 SoundPoint IP Desktop Phones Introducing the SoundPoint IP / SoundStation IP Family SoundPoint IP 600/601 SoundStation IP Conference PhoneCurrently supported conference phone is SoundStation IP Key Features of Your SoundPoint IP / SoundStation IP PhonesAdministrator’s Guide SoundPoint IP / SoundStation IP Overview SoundPoint IP / SoundStation IP Phones on Where SoundPoint IP / SoundStation IP Phones FitSession Initiation Protocol Application Architecture BootROMApplication Master Configuration Files Application Configuration Files ConfigurationApplication Configuration Files Resource Files Ring tones Synthesized tones Contact directories Available FeaturesOverview Microsoft Live Communications Server Overview IP Type-of-Service-Allows for the setting of TOS settings Configured in your network Setting up Your SystemDhcp or Manual TCP/IP Setup Setting Up the NetworkFor more information on Dhcp options, go to FTP Tftp Http Https Supported Provisioning ProtocolsMain Menu Dhcp Menu Server Menu Ethernet Menu Syslog Menu Modifying the Network ConfigurationCertificate Authority List on page C-1 Phone IP Address EM PowerName Possible Values Description Dhcp Client Dhcp MenuPossible Name Values Description Menu Or later. Passive FTP is still supported MenuName Possible Values Description This will be ignored Password these characters if they are correctly escapedUsing the method specified in RFC Password, this will be ignoredCDP Ethernet menuTLS=3 Setting Up the Boot ServerThese permissions, but will not be able to upload files Information, contact your Certified Polycom ResellerCreate account and home directory Each phone may open multiple connections to the serverYou must decide on a boot server security policy Deploying Phones From the Boot ServerSIP/ on page A-10 Configuration on page A-4PhoneMACaddress.cfg Supporting SoundPoint IP and SoundStation IP Phones Upgrading SIP ApplicationSupporting SoundPoint IP 300 and 500 Phones To upgrade your SIP application Cfg file can be used for all phones in a deployment This chapter also provides instructions on Setting Up Basic FeaturesConfiguring SoundPoint IP / SoundStation IP Phones Locally Administrator’s Guide SoundPoint IP / SoundStation IP Call Waiting Call TimerCall Log Missed Call Notification Called Party IdentificationCalling Party Identification Customizable Audio Sound Effects Context Sensitive Volume ControlCentral boot server Connected Party IdentificationMessages and voice messages are waiting Message Waiting IndicationDistinctive Incoming Call Treatment Xml Local Distinctive RingingDistinctive Call Waiting Address-directoryDo Not Disturb Local Contact Directory Handset, Headset, and SpeakerphoneXml Boot server Address-directoryDirect Ory.xmlUTF-8’s variable length encoding LnSmith/ln FnBill/fn Ct1003/ct Sd3/sd Rt3/rt Ad0/adDirectory Element Permitted Values InterpretationAuto-reject Local Digit MapTime and Date Display Microphone MuteSoft Key Activated User Interface Speed DialIdle Display Animation IP330/, IP400/, IP500/, IP600/, IP4000/ on Ethernet SwitchCall Hold Automatic Off-Hook Call PlacementLocal / Centralized Conferencing Call TransferCall Forward Directed Call Pick-Up Last Call Return Setting Up Advanced FeaturesGroup Call Pick-Up Call Park/RetrieveConfigurable Feature Keys Multiple Line Keys per Registration Feature Key Layouts on page C-10Shared Call Appearances Multiple Call AppearancesBridged Line Appearance Busy Lamp Field Refer to Bridged Line Appearance Signaling on page B-10Attendant.uri Customizable Fonts and IndicatorsCentral boot Instant MessagingMultilingual User Interface SoundStation IP 4000’s higher resolution displayMicrobrowser Downloadable FontsSynthesized Call Progress Tones Real-Time Transport Protocol Ports Voice Mail Integration Network Address TranslationMultiple Registrations Server server/ on page A-7 Depends on support from a SIP server Feature depends on support from a SIP serverAutomatic Call Distribution Server Redundancy For Outgoing Calls Invite Fallback Reg.1.server.1.address=voipserver.serviceprovider.com Phone ConfigurationPhone Operation for Registration PresenceMasking, the automatic behavior Microsoft Live Communications Server 2005 IntegrationConfiguration File Example Refer to Roaming Privacy roamingprivacy/ on page A-99 Refer to Roaming Buddies roamingbuddies/ on page A-99Locate the roamingprivacy attribute Set reg.x.auth.password to the LCS passwordSet the reg.x.server.y.address to the LCS server name Jitter Buffer and Packet Error Concealment Setting Up Audio FeaturesLow-Delay Audio Packet Transmission Negative audio consequences Voice Activity DetectionDtmf Tone Generation Dtmf Event RTP Payload Acoustic Echo CancellationEffective Audio CodecsFollowing table summarizes the phone’s audio codec support Automatic Gain Control IP Type-of-ServiceBackground Noise Suppression Comfort Noise FillIeee 802.1p/Q Setting Up Security FeaturesCustom Certificates Local User and Administrator Privilege LevelsConfiguration changes can performed locally Device.cfg Incoming Signaling ValidationConfiguration File Encryption Passwords Configuring SoundPoint IP / SoundStation IP Phones LocallyTroubleshooting Your SoundPoint IP / SoundStation IP Phones BootROM Error Messages Error MessagesApplication Error Messages Log Files Status MenuApplication Logging Options Scheduled Logging Following figure shows a portion of a boot log file Reading a Boot LogFollowing figure shows a portion of an application log file Reading an Application LogSymptom Problem Corrective Action Power and StartupControls Access to Screens and Systems Calling Phone on page C-9 DisplaysUpgrading AudioConfiguration Files Master Configuration Files One will cause a reboot loop CONFIGFILES=phone1MACADDRESS.cfg, sip.cfg MISCFILES= Application ConfigurationConfiguration Files This attribute includes This configuration attribute is defined as followsProtocol volpProt Microbrowser mb USB Port usbIf voIpProt.server.x.address is an IP If voIpProt.server.x.address is aVoIpProt.server.x.transport is set to If voIpProt.server.x.transport is set toVoIpProt.server.x.address is an IP VoIpProt.SIP.lcs To 1 default is Parameter if set to 1 when the parameterPermitted Attribute Values Default Interpretation Reg.x.auth.optimizedInFailover takes This attribute also includesOutbound Proxy outboundProxy May have a negative performance impact Due to the additional signaling requiredAlert Information alertInfo Request Validation requestValidationSpecial Events specialEvent Conference Setup conferenceAttribute Permitted Default Interpretation Values Considered a dial from directory Dial Plan dialplanDialplan.applyToCallListDial Digit Map digitmap Routing routing This attributes also includesServer server Emergency emergency Attribute Permitted Values Default InterpretationMultilingual ml Date and Time datetime Localization lclServer server Emergency emergencyLcl.ml.lang.menu.3 Attribute Permitted Values InterpretationLcl.ml.lang.menu.1 Lcl.ml.lang.menu.2Lcl.datetime.date.dateTop Lcl.datetime.date.longFormat+FF00 U+FFFF Permitted Attribute Values Interpretation User Preferences upOnIntensity value Tones tonesDual Tone Multi-Frequency Dtmf Chord-Sets chord OnIntensity, it will be replaced withDisabled Only be enabled when tone.dtmf.viaRtp isBe enabled when tone.dtmf.viaRtp is Ringer, or misc Sampled Audio for Sound Effects safTftp//host/pathnamefilename, for example Sound Effects seFollowing table, x is the sampled audio file number Wave file formatInstruction Meaning Example Patterns pat Ring type rtCall progress Use within phone Pattern number Miscellaneous PatternsCall Progress Patterns Call progress Pattern number Use within phone Ringer pattern number Default descriptionRinger Patterns Miscellaneous Pattern number Use within phone Miscellaneous PatternsPatterns on page A-31 SequentialFollowing voice codecs are supported Voice Settings voiceCodec Preferences codecPref These codecs includeCodec Preferences codecPref Codec Profiles audioProfile Codec Profiles audioProfile Attribute Default Attribute Default Attribute Default Acoustic Echo Cancellation aec Acoustic Echo Suppression aes Background Noise Suppression ns Feature Attribute Default Transmit Equalization txEq Attribute Default Ethernet Ieee 802.1p/Q ethernet IP TOS IP Quality of Service QOSFollowing settings control the 802.1p/Q userpriority field If voice.vadEnable is set to 0, add attribute lineRTP rtp Call Control callControl These parameters apply to RTP packetsCall Control callControl Other otherRTP rtp Qos.ip.callControl… Basic TCP/IP TcpipAttribute Permitted Default Values Permitted Attribute Values Default Interpretation Stop.dayOfWeek If fixedDayEnable is set toStart.dayOfWeek Start.date is ignoredTcpIpApp.port.rtp.filterByIp Must be enabled for this to workWeb Server httpd RTP rtpConfiguration cfg Call Handling Configuration callCase the phone may select a different available Take precedence over this feature if enabled. ForMore information, refer to No Answer Reg.x.callsPerLineKey. Refer to RegistrationIf call.stickyAutoLineSeize is set to 1, this Shared Calls shared Hold, Local Reminder hold/localReminderWhereas pressing and holding down the line Directory dirIP 4000 phone. For other phones a quick press Release of the line key will resume a callReplaced by 2X the value Platform, this value is internallyFonts font Presence presSoundPoint IP 550, 600, 601, SoundPoint IP 320, 330, 430, 500IP330 font IP330 Keys key This configuration attribute is defined as followsFunctions Following table lists the functions that are availableBitmaps bitmap Indicators indFollowing indicators are used by the phone Platform IP300/, IP 330/, IP400 Attribute Permitted Interpretation Values Following table, x is the LED number LEDs ledLevel Interpretation Event Logging logType Example Three formats are available for the event timestampTwo types of logging are supported You do not change this value Log.render.level maps toBeen logged since the last upload Support append mode unlessServer is set up for this Uploaded if no new events haveSecurity sec Encryption encryption Password Lengths pwd/lengthLicense license InFreeSpace is internally Provisioning provYou do not change these PlatformValue Delay delayRAM Disk ramdisk Request requestFeature feature Finder finder Quotas quotas Resource resInternally replaced by 2X the value Microbrowser mbSuccessful, the value in the Http refresh Will be respected, even if this parameter is set toRefresh parameter will be respected only Event that a refresh fails. Once a refresh isDetrimental effect on performance of the phone Function is selectedBulk Drive bulkDrive Per-Phone ConfigurationThese settings control the bulk drive or memory stick USB Port usbRegistration reg A-7 Is non-Null, all of the reg.x.server.y.xxxParameters will override the parameters Specified in sip.cfg in Server server/ onRefer to Call Handling Configuration call IP 300 and 500 phones Calls call If reg.x.serverFeatureControl.cf is notDo Not Disturb donotdisturb If call.missedCallTracking.x.enabled is Diversion divert Forwarding is enabled, thisParameter is enabled Divert.x.contact will be Calls can be automatically diverted when the phone is busyDialplan.x.digitmap is not Enabled, this parameter isServer-base call forwarding is Dialplan.x.applyToUserDial When present, and if Digit Map digitmap/ on Messaging msg Message Waiting Indicator mwiNetwork Address Translation nat Attendant attendant VoIpProt.local.signalPort in sip.cfgCommunications Server Roaming Buddies roamingbuddiesRoaming Privacy roamingprivacy Value 0 if the call server is Microsoft LiveFlash Parameter Configuration For example, if device.net.ipAddress.set = EnabledThis flash attributes are defined as follows Server address is preserved Refer to Basic Logging level/change/ Session Initiation Protocol SIP RFC and Internet Draft Support Method Supported Request SupportFollowing SIP request messages are supported Header Supported Header SupportFollowing SIP request headers are supported Header Supported Response Supported Response SupportFollowing SIP responses are supported 3xx Responses Redirection 5xx Responses Server Failure Third Party Call Control Hold ImplementationReliability of Provisional Responses TransferBridged Line Appearance Signaling Shared Call Appearance SignalingTrusted Certificate Authority List Miscellaneous Administrative TasksAdministrator’s Guide SoundPoint IP / SoundStation IP Encrypting Configuration Files Changed at regular intervals to enhance security Boot server management easierIt can decrypt the files that were encrypted on the server. Chaining CBC mode. An example key would look like thisChanging the Key on the Phone Adding a Background LogoColor RGB Values Decimal Hexadecimal Model Width Height Color DepthRGB Values BootROM/SIP Application Dependencies Migration Dependencies Model BootROM SIP ApplicationMultiple Key Combinations SoundPoint IP Default Feature Key LayoutsSoundPoint IP Key IP 550 330 601 Function SoundPoint IP 550/600/601/650SoundStation IP IP 550 Key 330 601 Function Assigning a Vlan ID Using Dhcp VLAN-A=10 VLAN-A=0x0a VLAN-A=012 Parsing Vendor ID Information End of sub-options Administrator’s Guide SoundPoint IP / SoundStation IP Third Party Software Administrator’s Guide SoundPoint IP / SoundStation IP Zlib Copyright and Permission Notice Third Party Software Administrator’s Guide SoundPoint IP / SoundStation IP Index Secondary server 3-3DHCP Inform DhcpIP TOS A-48 Administrator’s Guide SoundPoint IP / SoundStation IP SIP Administrator’s Guide SoundPoint IP / SoundStation IP