参照CME Admin Guide的总结,分享给大家{:2_35:}
EnablingCalls in Your VOIP Network
DHCP
NTP
正确配置SCCP电话的Timezone
章节:SCCP: Setting the Olson Timezone
SCCP电话的时区在telephony-service下配置
正确配置SIP电话的时间
在voice registerglobal中配置时区
在H323和SIP网络中配置DTMF-Relay
DTMF-Relay
也就是带外DTMF,在H323网络中使用H.245传递
IP phonesconnected to Cisco Unified CME systems require the use of out-of-band DTMFrelay to
transportDTMF (keypad) digits across VoIP connections. The reason for this is that thecodecs used for
in-bandtransport may distort DTMF tones and make them unrecognizable. DTMF relay solves the
problem of DTMF tone distortion bytransporting DTMF tones out-of-band.
在SIP网络中配置DTMF
Rtp-nte: Real-Time Transport Protocol (RTP)with the Named Telephone Event (NTE)
Sip-notity: DTMF using SIP NOTIFY messages.
Registrar填写CME的地址 可以填写多个
检查SIPtrunk的配置
修改DHCP记录的TFTP地址