Hello everyone!
I've stuck with another problem. I trying to make outbounding calls from FS to CUCM through Yate (FS & Yate on one box) without RTP Forwarding because CUCM confs doesn't support faststart. Calls are successfull and media goes fine but there is no RBT.
My regexroute.conf:
${formats}^\([^,]*\)=;formats=\1
${module}^sip$=h323/${called}@10.74.100.5
${module}^h323$=sip/sip:${called}@10.74.33.70;line=freeswitch
.*=-;error=forbidden;reason=Protocol not allowed
With RTP Forwarding enabled RBT works fine, but calls dropped with error due to disabled support of faststart on CUCM.
Here is call log with RTP Forwarding disabled and no RBT:
 0160331182652.770165 <sip:INFO> 'udp:0.0.0.0:5068' received 1133 bytes SIP message from 10.74.33.70:5080 [0x279c500]
 -----
 NVITE sip:5142@10.74.33.70:5068 SIP/2.0
 ia: SIP/2.0/UDP 10.74.33.70:5080;rport;branch=z9hG4bK3aBcyHeD2y8vH
 ax-Forwards: 69
 rom: "TEST 1" <sip:5000@10.74.33.70:5068>;tag=32S3FBggXSNQa
 o: <sip:5142@10.74.33.70:5068>
 all-ID: 4f07ed6c-71d6-1234-7faf-aad026afe127
 Seq: 89375742 INVITE
 ontact: <sip:gw+yate@10.74.33.70:5080;transport=udp;gw=yate>
 ser-Agent: FreeSWITCH-mod_sofia/1.6.6+git~20160111T201612Z~d2d0b3283a~64bit
 llow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
 upported: timer, path, replaces
 llow-Events: talk, hold, conference, refer
 ontent-Type: application/sdp
 ontent-Disposition: session
 ontent-Length: 313
 -FS-Support: update_display,send_info
 emote-Party-ID: "TEST 1" <sip:5200@10.74.33.70:5068>;party=calling;screen=yes;privacy=off 
 =0
 =FreeSWITCH 1459399404 1459399405 IN IP4 10.74.33.70
 =FreeSWITCH
 =IN IP4 10.74.33.70
 =0 0
 =audio 24208 RTP/AVP 0 8 18 9 101
 =rtpmap:0 PCMU/8000
 =rtpmap:8 PCMA/8000
 =rtpmap:18 G729/8000
 =fmtp:18 annexb=no
 =rtpmap:9 G722/8000
 =rtpmap:101 telephone-event/8000
 =fmtp:101 0-16
 =ptime:20
------ 
 0160331182652.775440 <sip:INFO> 'udp:0.0.0.0:5068' sending code 100 0x7f559800ce40 to 10.74.33.70:5080 [0x279c500]
 -----
 IP/2.0 100 Trying
 ia: SIP/2.0/UDP 10.74.33.70:5080;rport=5080;branch=z9hG4bK3aBcyHeD2y8vH;received=10.74.33.70
 rom: "TEST 1" <sip:5000@10.74.33.70:5068>;tag=32S3FBggXSNQa
 o: <sip:5142@10.74.33.70:5068>
 all-ID: 4f07ed6c-71d6-1234-7faf-aad026afe127
 Seq: 89375742 INVITE
 erver: YATE/5.5.1
 ontent-Length: 0 
------ 
20160331182652.775516 <sip/3:ALL> YateSIPConnection::YateSIPConnection(0x7f559800bdb0,0x7f55ac02d830) [0x7f5598002fe0] 
20160331182652.775591 <sip/3:ALL> NAT address is '(null)' [0x7f5598002fe0] 
20160331182652.775746 <sip/3:ALL> Set media: audio=g729 [0x7f5598002fe0] 
20160331182652.778955 <INFO> Could not classify call from '5000', wasted 4 usec 
20160331182652.779095 <INFO> Routing call to '5142' in context 'default' via 'h323/5142@10.74.100.5' in 78 usec 
20160331182652.779106 <sip/3:ALL> NAT address is '(null)' [0x7f5598002fe0] 
20160331182652.779155 <h323:INFO> Found call to H.323 target='
5142@10.74.100.5' 
20160331182652.783909 <h323:ALL> YateH323Connection::YateH323Connection(0x26d56f0,5784,0x7f5598001d20) [0x7f55b4000c10] 
20160331182652.783922 <h323/3:ALL> YateH323Chan::YateH323Chan(0x7f55b4000c10,(null)) outgoing [0x7f55b4004b50] 
20160331182652.783945 <h323/3:INFO> Setting H.323 caller: number='5000' name='TEST 1' 
20160331182652.783952 <h323/3:ALL> YateH323Connection::rtpForward(0x7f5598001d20,0) [0x7f55b4000c10] 
20160331182652.783956 <h323/3:NOTE> Formats changed to 'g729' 
20160331182652.783980 <h323/3:ALL> Removing capability 'G.729B' (g729b) not in remote 'g729' 
20160331182652.790985 <h323/3:ALL> YateH323Connection::OnSetLocalCapabilities() external [0x7f55b4000c10] 
20160331182652.791025 <h323/3:ALL> H323Connection::CreateRealTimeLogicalChannel external [0x7f55b4000c10] 
20160331182652.791041 <h323/3:ALL> Capability 'G.729A/B{sw}' format 'g729' session 1 receive 
20160331182652.791069 <h323/3:ALL> Logical control channel address '10.74.33.70' 
20160331182652.791082 <yrtp:ALL> No-transport message received 
20160331182652.791097 <yrtp:ALL> YRTPWrapper::YRTPWrapper('10.74.33.70',0x7f55b4004b50,'audio',receive,0x7f55bb7d6dd0,false) [0x7f55b4009b60] 
20160331182652.791108 <yrtp:ALL> YRTPWrapper::setupRTP("10.74.33.70",true,true) [0x7f55b4009b60] 
20160331182652.791130 <yrtp:INFO> Session 'yrtp/1910091913' 0x7f55b4009ee0 bound to 10.74.33.70:22190 +RTCP [0x7f55b4009b60] 
20160331182652.791137 <yrtp:ALL> YRTPSource::YRTPSource(0x7f55b4009b60) [0x7f55b400a320] 
20160331182652.791143 <yrtp:ALL> YRTPWrapper::setupSRTP(false) [0x7f55b4009b60] 
20160331182652.791168 <h323/3:ALL> H323Connection::CreateRealTimeLogicalChannel external [0x7f55b4000c10] 
20160331182652.791178 <h323/3:ALL> Capability 'G.729A/B{sw}' format 'g729' session 1 send 
20160331182652.791189 <h323/3:ALL> Logical control channel address '10.74.33.70' 
20160331182652.791198 <yrtp:ALL> No-transport message received 
20160331182652.791202 <yrtp:ALL> Wrapper 0x7f55b4009b60 found by CallEndpoint 0x7f55b4004b50 
20160331182652.791206 <yrtp:ALL> YRTPConsumer::YRTPConsumer(0x7f55b4009b60) [0x7f55b400a880] 
20160331182652.791210 <yrtp:ALL> YRTPWrapper::setupSRTP(false) [0x7f55b4009b60] 
20160331182652.791232 <h323/3:ALL> H323Connection::CreateRealTimeLogicalChannel external [0x7f55b4000c10] 
20160331182652.791240 <h323/3:ALL> Capability 'G.729A{sw}' format 'g729' session 1 receive 
20160331182652.791250 <h323/3:ALL> Logical control channel address '10.74.33.70' 
20160331182652.791258 <yrtp:ALL> No-transport message received 
20160331182652.791262 <yrtp:ALL> Wrapper 0x7f55b4009b60 found by CallEndpoint 0x7f55b4004b50 
20160331182652.791265 <yrtp:ALL> YRTPWrapper::setupSRTP(false) [0x7f55b4009b60] 
20160331182652.791281 <h323/3:ALL> H323Connection::CreateRealTimeLogicalChannel external [0x7f55b4000c10] 
20160331182652.791288 <h323/3:ALL> Capability 'G.729A{sw}' format 'g729' session 1 send 
20160331182652.791297 <h323/3:ALL> Logical control channel address '10.74.33.70' 
20160331182652.791305 <yrtp:ALL> No-transport message received 
20160331182652.791308 <yrtp:ALL> Wrapper 0x7f55b4009b60 found by CallEndpoint 0x7f55b4004b50 
20160331182652.791312 <yrtp:ALL> YRTPWrapper::setupSRTP(false) [0x7f55b4009b60] 
20160331182652.791328 <h323/3:ALL> H323Connection::CreateRealTimeLogicalChannel external [0x7f55b4000c10] 
20160331182652.791335 <h323/3:ALL> Capability 'G.729{sw}' format 'g729' session 1 receive 
20160331182652.791344 <h323/3:ALL> Logical control channel address '10.74.33.70' 
20160331182652.791352 <yrtp:ALL> No-transport message received 
20160331182652.791355 <yrtp:ALL> Wrapper 0x7f55b4009b60 found by CallEndpoint 0x7f55b4004b50 
20160331182652.791358 <yrtp:ALL> YRTPWrapper::setupSRTP(false) [0x7f55b4009b60] 
20160331182652.791377 <h323/3:ALL> H323Connection::CreateRealTimeLogicalChannel external [0x7f55b4000c10] 
20160331182652.791385 <h323/3:ALL> Capability 'G.729{sw}' format 'g729' session 1 send 
20160331182652.791394 <h323/3:ALL> Logical control channel address '10.74.33.70' 
20160331182652.791401 <yrtp:ALL> No-transport message received 
20160331182652.791405 <yrtp:ALL> Wrapper 0x7f55b4009b60 found by CallEndpoint 0x7f55b4004b50 
20160331182652.791409 <yrtp:ALL> YRTPWrapper::setupSRTP(false) [0x7f55b4009b60] 
20160331182653.263866 <h323/3:INFO> YateH323Connection::OnAlerting '5142' [0x7f55b4000c10] 
20160331182653.265510 <yrtp:ALL> RTP/AVP message received 
20160331182653.265547 <yrtp:INFO> Guessed local IP '10.74.33.70' for remote '10.74.33.70' 
20160331182653.265553 <yrtp:ALL> YRTPWrapper::YRTPWrapper('10.74.33.70',0x7f5598002fe0,'audio',bidir,0x27ab130,false) [0x27b1a20] 
20160331182653.265560 <yrtp:ALL> YRTPWrapper::setupRTP("10.74.33.70",true,true) [0x27b1a20] 
20160331182653.265578 <yrtp:INFO> Session 'yrtp/1139616103' 0x27b2930 bound to 10.74.33.70:27396 +RTCP [0x27b1a20] 
20160331182653.265584 <yrtp:ALL> YRTPSource::YRTPSource(0x27b1a20) [0x27b6ab0] 
20160331182653.265590 <INFO> DataTranslator::attachChain [0x27b6ab0] '(null)' -> [0x7f55b400a880] '(null)' not possible 
20160331182653.265594 <yrtp:ALL> YRTPConsumer::YRTPConsumer(0x27b1a20) [0x27b6c40] 
20160331182653.265598 <INFO> DataTranslator::attachChain [0x7f55b400a320] '(null)' -> [0x27b6c40] '(null)' not possible 
20160331182653.265602 <yrtp:ALL> YRTPWrapper::startRTP("10.74.33.70",24208) [0x27b1a20] 
20160331182653.265607 <yrtp:INFO> RTP starting format 'g729' payload 18 [0x27b1a20] 
20160331182653.265613 >>> DataTranslator::detachChain(0x27b6ab0,0x7f55b400a880) 
20160331182653.265616 <<< DataTranslator::detachChain 
20160331182653.265621 <INFO> DataTranslator::attachChain [0x27b6ab0] 'g729' -> [0x7f55b400a880] '(null)' not possible 
20160331182653.265624 >>> DataTranslator::detachChain(0x7f55b400a320,0x27b6c40) 
20160331182653.265627 <<< DataTranslator::detachChain 
20160331182653.265630 <INFO> DataTranslator::attachChain [0x7f55b400a320] '(null)' -> [0x27b6c40] 'g729' not possible 
 0160331182653.268333 <sip:INFO> 'udp:0.0.0.0:5068' sending code 180 0x27af4f0 to 10.74.33.70:5080 [0x279c500]
 -----
 IP/2.0 180 Ringing
 ia: SIP/2.0/UDP 10.74.33.70:5080;rport=5080;branch=z9hG4bK3aBcyHeD2y8vH;received=10.74.33.70
 rom: "TEST 1" <sip:5000@10.74.33.70:5068>;tag=32S3FBggXSNQa
 o: <sip:5142@10.74.33.70:5068>;tag=1646484832
 all-ID: 4f07ed6c-71d6-1234-7faf-aad026afe127
 Seq: 89375742 INVITE
 erver: YATE/5.5.1
 ontact: <sip:5142@10.74.33.70:5068>
 llow: ACK, INVITE, BYE, CANCEL, REGISTER, REFER, OPTIONS, INFO
 ontent-Type: application/sdp
 ontent-Length: 204 
 =0
 =yate 1459423613 1459423613 IN IP4 10.74.33.70
 =SIP Call
 =IN IP4 10.74.33.70
 =0 0
 =audio 27396 RTP/AVP 18 101
 =rtpmap:18 G729/8000
 =fmtp:18 annexb=no
 =rtpmap:101 telephone-event/8000
------ 
Help me please.