Nortel Networks IP Phone 1535 manual Modifying Codec Priority lists

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50Additional conﬁguration using the VoIP Settings menu

Step Action

1Log in to the IP Phone 1535 using the Admin Mode. For more information, see "Logging in to the IP Phone 1535 Admin Mode" (page 25).

2From the Main Menu, go to Settings > VoIP Settings > Registration and select Misc. then press OK to accept selection.

3Select CTBW and press OK. The parameters controlling bandwidth usage are now available. Set the bandwidth parameter to a value between the range of 60 and 250 Kb/s. By default, the IP Phone 1535 is set with a CTBW value of 250 Kb/s.

4Press OK to conﬁrm.

—End—

Modifying Codec Priority lists

To set Audio and Video codec priorities (to suit the speciﬁcs of your

Communications Server setup), use this conﬁguration option.

Conﬁguring the order of Codec Priority:

Step Action

1Log in to the IP Phone 1535 using the Admin Mode. For more information, see "Logging in to the IP Phone 1535 Admin Mode" (page 25).

2From the Main Menu, go to Settings > VoIP Settings > Misc. and select Codec Priority. Press OK.

3Select the Codec Type (Audio or Video) to conﬁgured, and press OK.

4Select the priority level, and assign a codec from the list of codecs available:

a.Audio: The IP Phone 1535 supports the following Audio Codec

Types: G.711 u-law,G.711 a-law,G.723, G.729, AMR, or None. You can conﬁgure these Audio codec types in a priority list of up to ﬁve options. Prioritize codecs depending on your network conﬁguration.

b.Video: The IP Phone 1535 supports the following Video Codec

Types: H.263 and H.264. You can conﬁgure these Video codec

Nortel Communications Servers

Nortel IP Phone 1535 Installation and Commissioning

NN43160-300 02.03 Standard

Release 4.0/SN10 28 October 2009

Copyright © 2009, Nortel Networks

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Contents Nortel IP Phone 1535 Installation and Commissioning Page November Revision historyOctober SeptemberRevision history Contents Conﬁguration on a CS 1000 system IP Phone 1535 regulatory information Contents Other changes FeaturesNew in this release New in this release Getting help from the Nortel web site How to get helpContents How to get help About the Nortel IP Phone IP PhoneDefault factory settings Safety informationIP Phone 1535 shipping box content Care of the IP PhoneTechnical speciﬁcations RAM 64 MB SdramDescription of the IP Phone 1535 menu options VoIP Settings menuMultiple language support System Settings menu Using the SD/MMC card To copy ﬁles from the phone to SD/MMC card About the Nortel IP Phone First time installation of the IP Phone Installing the IP Phone 1535 for the ﬁrst timeInstalling the IP Phone 1535 for the ﬁrst time Provision the Communications Server Connect the IP Phone 1535 to a power source Physically install the IP PhoneInstallation guidelines Connect the handsetConnect to Pstn Logging in to the IP Phone 1535 Admin ModeAttach the IP Phone 1535 to the stand Connecting the IP Phone 1535 to the LAN Enabling the LAN connection proﬁleAccessing and modifying the LAN Network Settings Parameter DescriptionEnabling the WiFi connection proﬁle Access and modify Wireless Settings EssidModifying User Information parameters Modifying Proxy parameters Conﬁguring the Stun server Conﬁguration of NAT-traversalEnabling Stun protocol Conﬁguring VoIP domain name information Modifying port assignmentsRegistering the IP Phone Registration and select Registration Statistics First time installation of the IP Phone Conﬁguration on a CS 1000 system Limitations38 Conﬁguration on a CS 1000 system IP Phone 1535 system software updates Checking for available IP Phone 1535 software updatesInitiating manual software updates for the IP Phone FTP software update process Provisioning the FTP update serverConﬁguring the FTP server login account Provisioning the FTP server directory structureFTP software update ﬁles Handling the FirmwareUpdateRequest.acfg ﬁleIP Phone 1535 system software updates Provisioning the FTP update server Sample FTP server directory structure De-Registering the IP Phone Additional conﬁguration using the VoIP Settings menuRegistration option Misc. Miscellaneous conﬁguration option Accessing and modifying Call Total Bandwidth Ctbw Ports For more information, see Modifying port assignmentsModifying Codec Priority lists Conﬁguring VoIP Voice Mail Enter the Number associated with your voice mail. Press OKConﬁguring the Mailbox ID Modifying the Date and Time Additional conﬁguration using the System Settings menuAccessing and activating the Reset function Accessing the Technical Features conﬁguration option Accessing the Technical Features conﬁguration option Additional conﬁguration using the System Settings menu Conﬁguring Email Conﬁguring IP Phone 1535 Email account informationEmails containing phone number strings IP Phone 1535 Camera Enabling and disabling the CameraIP Phone 1535 Camera Basic troubleshooting TroubleshootingKnown issues Troubleshooting connectivity issuesTroubleshooting Regulatory information and disclaimers IP Phone 1535 regulatory informationIP Phone 1535 emissions statement Regulatory and safety information EMC compliance Jurisdiction Standard DescriptionUSA-FCC Federal Communications Commission statement Telecom requirements for both Canada and USA FCC Interference statementCompliance statement for Canada Telecom requirements for both Canada and USA IP Phone 1535 regulatory information Page Nortel IP Phone 1535 Installation and Commissioning