Code Blue IP2501-s - Page 26

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GU-137-Hpage 26 of 67
IP1500 and IP2500 Series
Administrator Guide
ConguringMediaSettings
FortheSIPprotocol,youcanspecifyaportrangefromwhichthespeakerphonewillselectIPports
to offer to the other system for use with RTP communication.
Thespeakerphonecanuseanyoneofasuiteofcodecsforvoicecommunication.Whichcodec
isusedisdependentonnegotiationwiththeremotesystem,butyoucanuseCodecSelectionto
specifyalistofpreferredcodecsthatwillbeofferedinnegotiation.
• To add codecs to the Preferredlist,highlightthemintheAvailable list and click Add.
• ToremovecodecsfromthePreferredlist,highlightthemandclickRemove.
• Tochangetheorderpreferredcodecsareoffered,highlightthemandclickeitherMove Up or
Move Downtoreorganizethem.
NotethatsomecodecscorruptDTMFtones,e.g.G.729.IfRFC2833out-of-bandDTMFsignalingis
notinuse,besuretocongureyourcodecsappropriatelyoryoumaynotbeabletousein-callcom-
mands.Besuretotestyourcongurationtomakesureallfeaturesareavailable.