DNS SIP Server Name Resolution | Polycom 1725-11530-200 Rev A1

Administrator’s Guide - SoundPoint® IP / SoundStation® IP

Features

the case of static server lists, when a server registration fails, registration will be attempted on another server. If the phone is not registered to the first server in the list when registration fails, it will start by trying to register to the first server. When mak- ing a new call, if the INVITE fails, the other servers in the list will be tried one by one for routing signaling until the last server is tried.

Definition of signaling failure (registration or start of call):

•If TCP is used: The signaling fails if the connection fails or the Send fails.

•If UDP is used: The signaling fails if ICMP is detected or if the signal times out. If the signaling has been attempted through all servers in the list and this is the last server then the signaling fails after the complete UDP timeout defined in RFC 3261. If it is not the last server in the list, the maximum number of retries using the configurable retry timeout is used. For more information, refer to 4.6.1.1.2 Server <server/> on page 85 and 4.6.2.1 Registration <reg/> on page 149.

3.6.5.1DNS SIP Server Name Resolution

If a DNS name is given for a proxy/registrar address, the IP address(es) associated with that name will be discovered as specified in RFC 3263 - Locating SIP Servers. If a port is given, the only lookup will be an A record. If no port is given, NAPTR and SRV records will be tried, before falling back on A records if NAPTR and SRV records return no results. If no port is given, and none is found through DNS, 5060 will be used.

Refer to http://www.ietf.org/rfc/rfc3263.txt for an example.

Note

Failure to resolve a DNS name is treated as signalling failure that will cause a fail over.

3.6.6Microsoft® Office Live Communications Server 2005 Integration

SoundPoint® IP phones can used with Microsoft® Office Live Communications

Server 2005 and Microsoft® Office Communicator to help improve business efficien- cies and increase productivity and to share ideas and information immediately with business contacts.

Copyright © 2006 Polycom, Inc.

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Polycom 1725-11530-200 Rev A1 Microsoft Office Live Communications Server 2005 Integration, DNS SIP Server Name Resolution

Contents

Administrator’s Guide SoundPoint/SoundStation IP SIP Polycom, Inc Table of Contents Call Management Features Optimization Configuration Files Session Initiation Protocol SIP 163 Viii Copyright 2006 Polycom, Inc Overview Copyright 2006 Polycom, Inc Installation Models Installation and Operation Installation Process Phones boot up in two phases Basic Network SetupDhcp or Manual TCP/IP Setup Provisioning File Transfer Configuration File Local ParameterSubnet mask IP gateway Sntp GMT offset 600 4000 Specified 300 301, 430Protocol Name Possible Values a Description Local User Interface Setup MenusMain Menu Name Possible Description Values Dhcp Menu Possible Name Values Description Name Possible Values Description Server Menu Ethernet Menu Reset to Factory Defaults Configuration Files Application ConfigurationCentralized Configuration Default Master Configuration File Master configuration files contain six XML attributes Category Description Example Application Configuration Files Setting Flash Parameters from Configuration Files Name Possible Values Description Name Possible Values Description Boot Server Deployment for the Phones Account-by-account basis Step Instructions Step Instructions Local Phone Configuration Management of File Encryption and Decryption Passwords Changing the Key on the Phone Copyright 2006 Polycom, Inc Page Call Timer Basic FeaturesCall Log Phone maintains a call log. The log Called Party Identification Call WaitingCalling Party Identification Missed Call Notification Configurable Feature Keys SoundPoint IP 430 Key Layout SoundPoint IP 300 and 301 Key Layout SoundPoint IP 600 and 601 Key Layout SoundPoint IP 500 and 501 Key Layout Function SoundPoint IP 4000 Key Layout Key ID IP 300IP 500 IP 600 Key ID IP 300 Connected Party Identification Customizable Audio Sound Effects Context Sensitive Volume Control Message Waiting Indication Administration Distinctive Incoming Call TreatmentDistinctive Incoming Call Treatment Distinctive Ringing Do-Not-Disturb Distinctive Call Waiting Handset, Headset, and Speakerphone Local Contact Directory Element Permitted Values Interpretation Local Contact Directory File FormatLocal Contact Directory File example Local Digit Map Multiple Line Keys per Registration Microphone Mute Multiple Call Appearances Shared Call Appearances Line-seize subscription for mutual exclusion feature Bridged Line Appearances Figuration files or the local phone user interface should be Busy Lamp Field Customizable Fonts and Indicators Speed Dial Soft Key-Driven User Interface Time and Date Display Set the time and date display formats Idle Display Animation Call Management FeaturesAutomatic Off-hook Call Placement Call Transfer Call Hold Three-Way Conference, Local or Centralized Directed Call Pick-up Call Diversion Call Forward Call Park / Retrieve Group Call Pick-up Low-Delay Audio Packet Transmission Audio Processing FeaturesJitter Buffer and Packet Error Concealment Last Call Return Voice Activity Detection Dtmf Event RTP Payload Acoustic Echo Cancellation AECDtmf Tone Generation Following table summarizes the phone’s audio codec support Audio CodecsSample Effective Algorithm Background Noise Suppression BNS Presence and Instant Messaging FeaturesComfort Noise Fill Automatic Gain Control AGC Multilingual User Interface Localization FeaturesInstant Messaging +FF00 U+FFFF Name Range Synthesized Call Progress Tones Downloadable Fonts Voice Mail Integration Advanced Server Features SoundPoint IP 500, 501, 600 and 601 instant mes Multiple Registrations Local Server Redundancy ACD login / logoutACD agent available / unavailable Microsoft Office Live Communications Server 2005 Integration DNS SIP Server Name Resolution Central Modify the phone1.cfg configuration file as follows Configuration File ChangesModify the sip.cfg configuration file as follows Optional Modify the sip.cfg configuration file as follows Security Features Accessory Internet FeaturesLocal User and Administrator Privilege Levels MicroBrowser Custom Certificates Incoming Signaling Validation Configuration File Encryption Administrator’s Guide SoundPoint IP / SoundStation IP Application Network Setup Ethernet SwitchSoundPoint IP Switch Port Priorities Real-Time Transport Protocol Ports Working with Network Address Translation Updating and Rebooting Centralized Reboot Manual Reboot Menu Option or Key PressesPeriodic Polling For Upgrades Event Logging Log files uploaded in this manner are named Audio Quality Issues and VLANsIP TOS Ieee 802.1p/Q Rtcp Support SIP Configuration sip.cfg Configuration Files Local local Protocol volpProtServer server Permitted Attribute Values Permitted Attribute Values TLS SIP SIP SDP SDP Attribute Values Attribute Values Invite Permitted Attribute Values Default Interpretation Request Validation requestValidation Attribute Default Interpretation Default Interpretation Ues Conference Setup conference Attribute Dial Plan dialplan Attribute Permitted Values Default InterpretationDigit Map digitmap Routing routing Emergency emergency Localization localization Permitted Attribute Values Interpretation Multilingual multilingual Adding New Languages Date and Time datetime User Preferences userpreferences Dual Tone Multi-Frequency Dtmf Attribute Permitted Default Interpretation ValuesTones tones Chord Sets chordsets All three blocks use the same chord set specification format Attribute Permitted Interpretation Values Following sampled audio Wave file .wav formats are supported Attribute Permitted Values Interpretation Following table, x is the sampled audio file number Instruction Meaning Example Sound Effects soundeffectsPatterns patterns 104 Copyright 2006 Polycom, Inc Call Progress Patterns Ringer pattern Number Default descriptionCall progress Use within phone Pattern number Ringer Patterns Miscellaneous Use within phone Pattern number Miscellaneous Patterns Miscellaneous Pattern number Use within phone Ring type ringType Following voice codecs are supported Voice Settings voiceVoice Coding Algorithms codecs Codec Profiles profiles Default Interpretation Values Volume Persistence volume Gains gains Attribute Default 112 Copyright 2006 Polycom, Inc Acoustic Echo Cancellation AEC Acoustic Echo Suppression AES Automatic Gain Control AGC Background Noise Suppression NS Receive Equalization Rxeq Transmit Equalization Txeq Ethernet Ieee 802.1p/Q Ethernet Quality of Service QOSVoice Activity Detection VAD Other Other IP TOS IPCall Control CallControl 120 Copyright 2006 Polycom, Inc Basic TCP/IP Tcpip Attribute Permitted Values DefaultNetwork Monitoring netMon Time Synchronization Sntp 122 Copyright 2006 Polycom, Inc Copyright 2006 Polycom, Inc 123 1.10.3.1 1.10.3 Port port Web Server Httpd Call Handling Configuration callConfiguration cfg Shared Calls shared Hold, Local Reminder hold/localReminder Attribute Values Default Interpretation Directory directory Fonts font Presence presence Example of use 501 1.15.3 IP600 font IP600 1.15.1 IP400 font IP4001.15.2 IP500 font IP500 Following table lists the functions that are available Keys keys Bitmaps used by the phone are defined in this section Bitmaps bitmapsPlatform IP300/, IP400/, IP500/, IP600/ and IP4000 Indicators indicators Assignments Assignments Classes Classes Graphic Icons gi/ IP300/, IP400/, IP500/, IP600/ and IP4000 Following table, x is the LED numberLEDs led Level Interpretation Event Logging logging Type Example Basic Logging level/change/ and renderThree formats are available for the event timestamp Copyright 2006 Polycom, Inc 139 Scheduled Logging Parameters scheduled These settings affect security aspects of the phoneSecurity security Encryption encryption Password Lengths pwd/length RAM Disk RAMdisk Provisioning provisioning Request request Delay delay Feature feature Quotas quotas Resource resourceFinder finder Idle Display idleDisplay MicroBrowser microbrowser Browser Limits limits Main Browser main 148 Copyright 2006 Polycom, Inc Registration reg Per-phone Configuration phone1.cfg 150 Copyright 2006 Polycom, Inc Copyright 2006 Polycom, Inc 151 152 Copyright 2006 Polycom, Inc Do Not Disturb donotdisturb Automatic Off-hook Call Placement autoOffHookCalls call Diversion divert Missed Call Configuration serverMissedCall Forward All fwd Calls can be automatically diverted when the phone is busyBusy busy No Answer noanswer Do Not Disturb dnd Copyright 2006 Polycom, Inc 157 158 Copyright 2006 Polycom, Inc Messaging msg Message Waiting Indicator mwi Network Address Translation nat Roaming Buddies roamingbuddies Attendant attendant Roaming Privacy roamingprivacy RFC and Internet Draft Support Basic ProtocolsRequest Support Title Header Supported Header Support Copyright 2006 Polycom, Inc 165 4.1 1xx Responses Provisional Response Support4.2 2xx Responses Success Response Supported 4.4 4xx Responses Request Failure 4.3 3xx Responses Redirection 4.5 5xx Responses Server Failure Reliability of Provisional Responses Hold ImplementationTransfer Third Party Call Control Phone supports the following SIP protocol extensions Protocol Extensions Or their successors Shared Call Appearance Signaling Dialog for bridged line appearance subscribe and notify Bridged Line Appearance Signaling Trusted Certificate Authority List Appendix 174 Copyright 2006 Polycom, Inc Adding a Background Logo Miscellaneous Administrative TasksModel Width Height Color Depth RGB Values Color Decimal Configuration File Changes Third Party Software Attribution 178 Copyright 2006 Polycom, Inc Copyright 2006 Polycom, Inc 179 Copyright and Permission Notice Curl