Transfer Does Not Return

[manishthakor]

While bridge transfer, respose invalide transfer showing Following are the logs of error.

11:41:15:197 DBUG VOICEGLU database callid=[409] parsed hungup callid=409
11:41:15:197 DBUG PHONGLUE database AstMgr msg: Event="SoftHangupRequest" Uniqueid="1351750253.531" Privilege="call,all" Channel="SIP/1112-0000008b" Cause="16"
11:41:15:197 DBUG VOICEGLU database callid=[409] snd Transfered to VXML interpreter on fh="10" at host=localhost callid=[409]
11:41:15:197 DBUG PHONGLUE database rcv mgr(::ASTMGR): "Event: Hangup\r\nPrivilege: call,all\r\nChannel: SIP/1112-0000008b\r\nUniqueid: 1351750253.531\r\nCallerIDNum: 1112\r\nCallerIDName: 1112\r\nConnectedLineNum: \r\nConnectedLineName: \r\nCause: 16\r\nCause-txt: Normal Clearing\r\n\r\n"
11:41:15:197 DBUG VOICEGLU database snd "Transfered\n" to 10
11:41:15:197 DBUG PHONGLUE database AstMgr msg: Event="Hangup" Privilege="call,all" Channel="SIP/1112-0000008b" Cause="16" ConnectedLineNum="" ConnectedLineName="" CallerIDName="1112" Uniqueid="1351750253.531" CallerIDNum="1112" Cause-txt="Normal Clearing"
11:41:15:199 DBUG OPEN_VXI database callid=[409] rcv vg: Transfered
11:41:15:199 EROR OPEN_VXI database callid=[409] invalid response to Transfer: Transfered