https://community.cisco.com/t5/unified-communications-infrastructure/cue-no-ringback-tone/m-p/4408779#M167120 <P>Hi,</P><P>i have CUE on ISR 4k but after transfer calto csccp phone i can't hear ringback tone, after transfer to SIp phone it's ok.</P><P>&nbsp;</P><P>&nbsp;</P><P>i tried with:</P><P>&nbsp;</P><PRE>CUE:<BR />ccn subsystem sip transfer-mode blind refer<BR /><BR />CME:<BR />voice service voip<BR /> no supplementary-service sip moved-temporarily<BR /> supplementary-service sip refer<BR /><BR /></PRE><P>but no result,&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Wed, 26 May 2021 11:26:57 GMT M.S.88 2021-05-26T11:26:57Z https://community.cisco.com/t5/unified-communications-infrastructure/cue-no-ringback-tone/m-p/4408779#M167120 <P>Hi,</P><P>i have CUE on ISR 4k but after transfer calto csccp phone i can't hear ringback tone, after transfer to SIp phone it's ok.</P><P>&nbsp;</P><P>&nbsp;</P><P>i tried with:</P><P>&nbsp;</P><PRE>CUE:<BR />ccn subsystem sip transfer-mode blind refer<BR /><BR />CME:<BR />voice service voip<BR /> no supplementary-service sip moved-temporarily<BR /> supplementary-service sip refer<BR /><BR /></PRE><P>but no result,&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Wed, 26 May 2021 11:26:57 GMT https://community.cisco.com/t5/unified-communications-infrastructure/cue-no-ringback-tone/m-p/4408779#M167120 M.S.88 2021-05-26T11:26:57Z