Cortelco 2747 Handset Volume, Handfree Volume, CodecTxGain, Ring Type, RTPLowBW, Jitter Buffering

Page 37

4.4.2.2 Handset Volume

Adjusts the volume of incoming calls on the handset.

4.4.2.3 Handfree Volume

Adjusts the volume of incoming calls on the handsfree.

4.4.2.4 CodecTxGain

Adjust the output voice volume.

4.4.2.5 Ring Type

Changes the ringing type(ring pattern) of an incoming call.

4.4.2.6 RTPLowBW

Checking this box will cause the phone to decrease the voice packet bandwidth in the transmit direction. This should only be used if the internet bandwidth is not good enough to support normal packet bandwidth.

4.4.2.7 Jitter Buffering

Checking this box will increase the jitter buffer from 150ms to 400ms. This may improve the received voice quality in some internet connections.

4.4.3Others

4.4.3.1VAD

Checking this box will enable Voice Activity Detection. With this feature enabled, the phone will detect if the user is talking and will not send packets when the user is silent. This can help to decrease the bandwidth requirement.

36

Image 37

Contents Voip IP Phone Configuration from Keypads Configuration on WEB Phone Book and Speed Dial Overview Introduction Key FeaturesPage Page Hardware Spec Hardware SpecificationKey parts of the Voip 2747 series IP Phone Rear Panel of the IP Phone Rear and Back side Panel of the VoipLight Keypad DefinitionLCD Display UP KeyVOL+ Down Key+OUT VOL NETMenu / OK CancelTXT ←→ NUM Transfer See Section Redial / DialPhone Book Speed Dial M1 M10LCD Menu List ¾ SIP Page Page Installation Environment Network Configuration Configuration from KeypadsDynamic IP Method Dhcp Static IP Method PPPoE MethodRegistration to a gatekeeper H.323 version Registration to GK / Proxy ServerRegistration to a proxy server SIP version Page Registration / Startup message Page Page Immediate Forward Call Forward ConfigurationsView current network settings Configurations under View itemBusy Forward No Answer ForwardAdvanced Configuration Packet Trace for signal monitoringRestart Display current software versionƒ Username root ƒ Password Web ConfigurationBasic Network Configuration on webOthers MAC AddressForward Mode H.323 Configuration on web1 H.323 Parameters Time ZoneAdvanced SIP Configuration on webMin Media Port Max Media PortReg From SIP ParametersReg To Reg ExpireRing Volume Phone Configuration on webPrefix VoiceHandfree Volume Handset VolumeCodecTxGain Ring TypeBG Noise Level System ConfigurationReceiving Calls Call Functions Making CallsCheck call history incoming / outgoing / missed calls Call Forward RedialCall Transfer Ringing TransferPhone Book and Speed Dial Call Hold1.1 Add EditSpeed Dial Change Settings Speed Dial View SettingsSpeed Dial Attachment H.323 Interoperability ListGateway GateKeeperSIP Interoperability List SoftSwitchProxy Server Trunking GatewayLimited Warranty