Administrator’s Guide for W60P DECT IP PhonesxviiiSIP Send Line........................................................................................................................................................................... 279Reserve # in User Name ..................................................................................................................................................... 281Unregister When Reboot ................................................................................................................................................... 283100 Reliable Retransmission ............................................................................................................................................. 284Reboot in Talking .................................................................................................................................................................. 286Quick Login .............................................................................................................................................................................. 288End Call on Hook................................................................................................................................................................... 289Configuring Advanced Features ............................................... 292Remote Phone Book ............................................................................................................................................................ 292Customizing Remote Phone Book Template File ........................................................................................... 292Lightweight Directory Access Protocol (LDAP) ......................................................................................................... 299Shared Call Appearance (SCA)......................................................................................................................................... 309Message Waiting Indicator (MWI) ................................................................................................................................. 313Multicast Paging .................................................................................................................................................................... 317Sending RTP Stream ................................................................................................................................................... 317Receiving RTP Stream ................................................................................................................................................ 321Server Redundancy............................................................................................................................................................... 327Server Domain Name Resolution.......................................................................................................................... 340Static DNS Cache................................................................................................................................................................... 343Real-Time Transport Protocol (RTP) Ports .................................................................................................................. 351TR-069 Device Management ............................................................................................................................................ 353Configuring Audio Features ...................................................... 361Tones .......................................................................................................................................................................................... 361Voice Mail Tone ..................................................................................................................................................................... 365Ringer Device for Headset ................................................................................................................................................ 367Audio Codecs .......................................................................................................................................................................... 368Supported Audio Codecs ......................................................................................................................................... 368Packetization Time (PTime) ..................................................................................................................................... 372Acoustic Clarity Technology ............................................................................................................................................. 374Background Noise Suppression (BNS) ................................................................................................................ 374Automatic Gain Control (AGC) ............................................................................................................................... 374Voice Activity Detection (VAD) .............................................................................................................................. 374Comfort Noise Generation (CNG) ......................................................................................................................... 376Jitter Buffer ..................................................................................................................................................................... 377DTMF .......................................................................................................................................................................................... 380Methods of Transmitting DTMF Digit ................................................................................................................. 381Suppress DTMF Display ............................................................................................................................................ 384Voice Quality Monitoring (VQM).................................................................................................................................... 386RTCP-XR ........................................................................................................................................................................... 387VQ-RTCPXR .................................................................................................................................................................... 388