User Guide for the SIP-T27G IP Phone 
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Configuring the Intercom Feature on the IP Phone.......................................................................... 166 
Using Intercom ................................................................................................................................................ 169 
Multicast Paging .................................................................................................................................................. 170 
Sending RTP Stream ...................................................................................................................................... 170 
Receiving RTP Stream ................................................................................................................................... 173 
Using Multicast Paging ................................................................................................................................. 175 
Music on Hold (MoH) ........................................................................................................................................ 177 
Automatic Call Distribution (ACD) ............................................................................................................... 178 
Shared Call Appearance (SCA) ....................................................................................................................... 179 
Configuring SCA Feature on the IP Phone ........................................................................................... 180 
Using SCA Feature on the IP Phone ........................................................................................................ 187 
Bridged Line Appearance (BLA) ..................................................................................................................... 194 
Configuring BLA Feature on the IP Phone ............................................................................................ 194 
Using BLA Feature on the IP Phone......................................................................................................... 197 
Messages ................................................................................................................................................................ 199 
Short Message Service (SMS)..................................................................................................................... 199 
Voice Mail .......................................................................................................................................................... 201 
Message Waiting Indicator (MWI) ........................................................................................................... 203 
Appendix..................................................................................... 207 
Appendix A – Time Zones ................................................................................................................................ 207 
Appendix B – Menu Structure ........................................................................................................................ 209 
Index ........................................................................................... 211 
   
 
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