Situation: PSTN originator gets no ringback on calls when they are being transfered from Unity to ip phone.
Topology: PSTN---Verizon---(sip)---CUBE---(h323)---CM_6---Unity I get ringback when I initially call in, just not on transfer. The CUBE is doing transcoding from g711 to g729 on box (using the funky telephony services config). I assume it is some interworking thing that someone has already experienced. Anybody seen this? Here is the interworking and transcoding config: ! voice service voip dtmf-interworking rtp-nte allow-connections h323 to h323 allow-connections h323 to sip allow-connections sip to h323 allow-connections sip to sip no supplementary-service h450.2 no supplementary-service h450.3 no supplementary-service sip moved-temporarily no supplementary-service sip refer fax protocol pass-through g711ulaw h323 sip bind control source-interface Loopback0 bind media source-interface Loopback0 early-offer forced midcall-signaling passthru sccp local GigabitEthernet0/0 sccp ccm 1.2.3.4 identifier 2 priority 2 version 6.0 sccp ccm 1.2.3.5 identifier 1 priority 1 version 6.0 sccp ! sccp ccm group 10 associate ccm 1 priority 1 associate ccm 2 priority 2 associate profile 1 register XCODE-CUBE_DC ! dspfarm profile 1 transcode codec g711ulaw codec g729r8 codec g729abr8 codec g729ar8 codec g729br8 maximum sessions 48 associate application SCCP ! telephony-service sdspfarm units 1 sdspfarm transcode sessions 96 sdspfarm tag 1 XCODE-CUBE_DC max-ephones 1 max-dn 1 ip source-address 1.2.3.10 port 2000 max-conferences 12 gain -6 transfer-system full-consult create cnf-files version-stamp Jan 01 2002 00:00:00 ! ! B _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com