The scenario is the following: FS User A dial an extension Extention opens outbound socket channel to my application My application bridges the call to FS User B The application check for CHANNEL_BRIDGED event and stores Other-leg-unique-id The application sends hold to the bridged channel using SendMsg with Other-leg-unique-id User B is placed on hold but no music on hold is played to the caller (User A) I have outbound socket channel and the following sequence of commands/event: listening on [any] 8084 ... connect to [172.26.200.251] from centos4-4-vm.abisoft.spb.ru [172.26.200.250] 34000 connect myevents SendMsg call-command: execute execute-app-name: bridge execute-app-arg:user/1000@uat.agent.starpoundtech.net Channel-Username: 1001 Channel-Dialplan: XML Channel-Caller-ID-Name: 1001 Channel-Caller-ID-Number: 1001 Channel-Network-Addr: 172.26.10.39 Channel-Destination-Number: 6666 Channel-Unique-ID: 15826d29-b807-4955-a2f9-038e0b3ee6e2 Channel-Source: mod_sofia Channel-Context: default Channel-Channel-Name: sofia/internal/1001%40172.26.200.250 Channel-Profile-Index: 1 Channel-Profile-Created-Time: 1249142681680114 Channel-Channel-Created-Time: 1249142681680114 Channel-Channel-Answered-Time: 0 Channel-Channel-Progress-Time: 0 Channel-Channel-Progress-Media-Time: 1249142681809352 Channel-Channel-Hangup-Time: 0 Channel-Channel-Transfer-Time: 0 Channel-Screen-Bit: true Channel-Privacy-Hide-Name: false Channel-Privacy-Hide-Number: false Channel-State: CS_EXECUTE Channel-State-Number: 4 Channel-Name: sofia/internal/1001%40172.26.200.250 Unique-ID: 15826d29-b807-4955-a2f9-038e0b3ee6e2 Call-Direction: inbound Answer-State: early Channel-Read-Codec-Name: PCMU Channel-Read-Codec-Rate: 8000 Channel-Write-Codec-Name: PCMU Channel-Write-Codec-Rate: 8000 Caller-Username: 1001 Caller-Dialplan: XML Caller-Caller-ID-Name: 1001 Caller-Caller-ID-Number: 1001 Caller-Network-Addr: 172.26.10.39 Caller-Destination-Number: 6666 Caller-Unique-ID: 15826d29-b807-4955-a2f9-038e0b3ee6e2 Caller-Source: mod_sofia Caller-Context: default Caller-Channel-Name: sofia/internal/1001%40172.26.200.250 Caller-Profile-Index: 1 Caller-Profile-Created-Time: 1249142681680114 Caller-Channel-Created-Time: 1249142681680114 Caller-Channel-Answered-Time: 0 Caller-Channel-Progress-Time: 0 Caller-Channel-Progress-Media-Time: 1249142681809352 Caller-Channel-Hangup-Time: 0 Caller-Channel-Transfer-Time: 0 Caller-Screen-Bit: true Caller-Privacy-Hide-Name: false Caller-Privacy-Hide-Number: false variable_sip_received_ip: 172.26.10.39 variable_sip_received_port: 13488 variable_sip_via_protocol: udp variable_sip_authorized: true variable_sip_mailbox: 1001 variable_sip_auth_username: 1001 variable_sip_auth_realm: 172.26.200.250 variable_mailbox: 1001 variable_toll_allow: domestic,international,local variable_accountcode: 1001 variable_user_context: default variable_effective_caller_id_name: Extension%201001 variable_effective_caller_id_number: 1001 variable_outbound_caller_id_name: StarPound%20FreeSWITCH variable_outbound_caller_id_number: 0000000000 variable_callgroup: techsupport variable_sip_from_user: 1001 variable_sip_from_uri: 1001%40172.26.200.250 variable_sip_from_host: 172.26.200.250 variable_sip_from_user_stripped: 1001 variable_sip_from_tag: bd11f93c variable_sofia_profile_name: internal variable_sip_req_user: 6666 variable_sip_req_uri: 6666%40172.26.200.250 variable_sip_req_host: 172.26.200.250 variable_sip_to_user: 6666 variable_sip_to_uri: 6666%40172.26.200.250 variable_sip_to_host: 172.26.200.250 variable_sip_contact_user: 1001 variable_sip_contact_port: 13488 variable_sip_contact_uri: 1001%40172.26.10.39%3A13488 variable_sip_contact_host: 172.26.10.39 variable_channel_name: sofia/internal/1001%40172.26.200.250 variable_sip_call_id: ZTYwOGM2NDNmMzA5ZjFmOWRhZGJiNTZkMDEyMjQ4YTc. variable_sip_user_agent: X-Lite%20release%201103d%20stamp%2053117 variable_sip_via_host: 172.26.10.39 variable_sip_via_port: 13488 variable_sip_via_rport: 13488 variable_max_forwards: 70 variable_presence_id: 1001%40172.26.200.250 variable_switch_r_sdp: v%3D0%0D%0Ao%3D-%208%202%20IN%20IP4%20172.26.10.39%0D%0As%3DCounterPath%20X-Lite%203.0%0D%0Ac%3DIN%20IP4%20172.26.10.39%0D%0At%3D0%200%0D%0Am%3Daudio%2029826%20RTP/AVP%200%208%203%20101%0D%0Aa%3Drtpmap%3A101%20telephone-event/8000%0D%0Aa%3Dfmtp%3A101%200-15%0D%0A variable_remote_media_ip: 172.26.10.39 variable_remote_media_port: 29826 variable_read_codec: PCMU variable_read_rate: 8000 variable_write_codec: PCMU variable_write_rate: 8000 variable_use_profile: nat variable_record_stereo: true variable_transfer_fallback_extension: operator variable_numbering_plan: US variable_default_areacode: 918 variable_default_gateway: example.com variable_user_name: default variable_domain_name: 172.26.200.250 variable_current_application_data: 172.26.200.251%3A8084%20async%20full variable_current_application: socket variable_socket_host: 172.26.200.251 variable_local_media_ip: 172.26.200.250 variable_local_media_port: 29370 variable_endpoint_disposition: EARLY%20MEDIA variable_sip_nat_detected: true Content-Type: command/reply Reply-Text: %2BOK%0A Socket-Mode: async Control: full Content-Type: command/reply Reply-Text: +OK Events Enabled Content-Type: command/reply Reply-Text: +OK Content-Length: 1541 Content-Type: text/event-plain Channel-State: CS_EXECUTE Channel-State-Number: 4 Channel-Name: sofia/internal/1001%40172.26.200.250 Unique-ID: 15826d29-b807-4955-a2f9-038e0b3ee6e2 Call-Direction: inbound Answer-State: early Channel-Read-Codec-Name: PCMU Channel-Read-Codec-Rate: 8000 Channel-Write-Codec-Name: PCMU Channel-Write-Codec-Rate: 8000 Caller-Username: 1001 Caller-Dialplan: XML Caller-Caller-ID-Name: 1001 Caller-Caller-ID-Number: 1001 Caller-Network-Addr: 172.26.10.39 Caller-Destination-Number: 6666 Caller-Unique-ID: 15826d29-b807-4955-a2f9-038e0b3ee6e2 Caller-Source: mod_sofia Caller-Context: default Caller-Channel-Name: sofia/internal/1001%40172.26.200.250 Caller-Profile-Index: 1 Caller-Profile-Created-Time: 1249142681680114 Caller-Channel-Created-Time: 1249142681680114 Caller-Channel-Answered-Time: 0 Caller-Channel-Progress-Time: 0 Caller-Channel-Progress-Media-Time: 1249142681809352 Caller-Channel-Hangup-Time: 0 Caller-Channel-Transfer-Time: 0 Caller-Screen-Bit: true Caller-Privacy-Hide-Name: false Caller-Privacy-Hide-Number: false Application: bridge Application-Data: user/1000%40uat.agent.starpoundtech.net Event-Name: CHANNEL_EXECUTE Core-UUID: ffb7a71e-0045-4013-89e2-f8c8ccbcfb4b FreeSWITCH-Hostname: centos4-4-vm FreeSWITCH-IPv4: 172.26.200.250 FreeSWITCH-IPv6: %3A%3A1 Event-Date-Local: 2009-08-01%2020%3A04%3A51 Event-Date-GMT: Sat,%2001%20Aug%202009%2016%3A04%3A51%20GMT Event-Date-Timestamp: 1249142691754598 Event-Calling-File: switch_core_session.c Event-Calling-Function: switch_core_session_exec Event-Calling-Line-Number: 1333 Content-Length: 5242 Content-Type: text/event-plain Channel-State: CS_EXECUTE Channel-State-Number: 4 Channel-Name: sofia/internal/1001%40172.26.200.250 Unique-ID: 15826d29-b807-4955-a2f9-038e0b3ee6e2 Call-Direction: inbound Answer-State: answered Channel-Read-Codec-Name: PCMU Channel-Read-Codec-Rate: 8000 Channel-Write-Codec-Name: PCMU Channel-Write-Codec-Rate: 8000 Caller-Username: 1001 Caller-Dialplan: XML Caller-Caller-ID-Name: 1001 Caller-Caller-ID-Number: 1001 Caller-Network-Addr: 172.26.10.39 Caller-Destination-Number: 6666 Caller-Unique-ID: 15826d29-b807-4955-a2f9-038e0b3ee6e2 Caller-Source: mod_sofia Caller-Context: default Caller-Channel-Name: sofia/internal/1001%40172.26.200.250 Caller-Profile-Index: 1 Caller-Profile-Created-Time: 1249142681680114 Caller-Channel-Created-Time: 1249142681680114 Caller-Channel-Answered-Time: 1249142692414509 Caller-Channel-Progress-Time: 1249142691898434 Caller-Channel-Progress-Media-Time: 1249142681809352 Caller-Channel-Hangup-Time: 0 Caller-Channel-Transfer-Time: 0 Caller-Screen-Bit: true Caller-Privacy-Hide-Name: false Caller-Privacy-Hide-Number: false Other-Leg-Username: 1001 Other-Leg-Dialplan: XML Other-Leg-Caller-ID-Name: Extension%201001 Other-Leg-Caller-ID-Number: 1001 Other-Leg-Network-Addr: 172.26.10.39 Other-Leg-Destination-Number: sip%3A1000%40172.26.10.39%3A60152%3Brinstance%3D393ff32df3ec5e33%3Bfs_nat%3Dyes Other-Leg-Unique-ID: 94b59a38-57c4-4703-9c6e-9985d832d119 Other-Leg-Source: mod_sofia Other-Leg-Context: default Other-Leg-Channel-Name: sofia/internal/sip%3A1000%40172.26.10.39%3A60152%3Brinstance%3D393ff32df3ec5e33%3Bfs_nat%3Dyes Other-Leg-Screen-Bit: true Other-Leg-Privacy-Hide-Name: false Other-Leg-Privacy-Hide-Number: false variable_sip_received_ip: 172.26.10.39 variable_sip_received_port: 13488 variable_sip_via_protocol: udp variable_sip_authorized: true variable_sip_mailbox: 1001 variable_sip_auth_username: 1001 variable_sip_auth_realm: 172.26.200.250 variable_mailbox: 1001 variable_toll_allow: domestic,international,local variable_accountcode: 1001 variable_user_context: default variable_effective_caller_id_name: Extension%201001 variable_effective_caller_id_number: 1001 variable_outbound_caller_id_name: StarPound%20FreeSWITCH variable_outbound_caller_id_number: 0000000000 variable_callgroup: techsupport variable_sip_from_user: 1001 variable_sip_from_uri: 1001%40172.26.200.250 variable_sip_from_host: 172.26.200.250 variable_sip_from_user_stripped: 1001 variable_sip_from_tag: bd11f93c variable_sofia_profile_name: internal variable_sip_req_user: 6666 variable_sip_req_uri: 6666%40172.26.200.250 variable_sip_req_host: 172.26.200.250 variable_sip_to_user: 6666 variable_sip_to_uri: 6666%40172.26.200.250 variable_sip_to_host: 172.26.200.250 variable_sip_contact_user: 1001 variable_sip_contact_port: 13488 variable_sip_contact_uri: 1001%40172.26.10.39%3A13488 variable_sip_contact_host: 172.26.10.39 variable_channel_name: sofia/internal/1001%40172.26.200.250 variable_sip_call_id: ZTYwOGM2NDNmMzA5ZjFmOWRhZGJiNTZkMDEyMjQ4YTc. variable_sip_user_agent: X-Lite%20release%201103d%20stamp%2053117 variable_sip_via_host: 172.26.10.39 variable_sip_via_port: 13488 variable_sip_via_rport: 13488 variable_max_forwards: 70 variable_presence_id: 1001%40172.26.200.250 variable_switch_r_sdp: v%3D0%0D%0Ao%3D-%208%202%20IN%20IP4%20172.26.10.39%0D%0As%3DCounterPath%20X-Lite%203.0%0D%0Ac%3DIN%20IP4%20172.26.10.39%0D%0At%3D0%200%0D%0Am%3Daudio%2029826%20RTP/AVP%200%208%203%20101%0D%0Aa%3Drtpmap%3A101%20telephone-event/8000%0D%0Aa%3Dfmtp%3A101%200-15%0D%0A variable_remote_media_ip: 172.26.10.39 variable_remote_media_port: 29826 variable_read_codec: PCMU variable_read_rate: 8000 variable_write_codec: PCMU variable_write_rate: 8000 variable_use_profile: nat variable_record_stereo: true variable_transfer_fallback_extension: operator variable_numbering_plan: US variable_default_areacode: 918 variable_default_gateway: example.com variable_user_name: default variable_domain_name: 172.26.200.250 variable_socket_host: 172.26.200.251 variable_local_media_ip: 172.26.200.250 variable_local_media_port: 29370 variable_endpoint_disposition: EARLY%20MEDIA variable_current_application_data: user/1000%40uat.agent.starpoundtech.net variable_current_application: bridge variable_dialed_user: 1000 variable_dialed_domain: uat.agent.starpoundtech.net variable_originate_disposition: failure variable_signal_bond: 94b59a38-57c4-4703-9c6e-9985d832d119 variable_sip_redirect_contact_user_0: 1000 variable_sip_redirect_contact_host_0: 172.26.10.39 variable_switch_m_sdp: v%3D0%0D%0Ao%3D-%201%202%20IN%20IP4%20172.26.10.39%0D%0As%3DCounterPath%20eyeBeam%201.5%0D%0Ac%3DIN%20IP4%20172.26.10.39%0D%0At%3D0%200%0D%0Am%3Daudio%2063944%20RTP/AVP%200%208%203%20101%0D%0Aa%3Drtpmap%3A101%20telephone-event/8000%0D%0Aa%3Dfmtp%3A101%200-15%0D%0A variable_sip_nat_detected: true Event-Name: CHANNEL_ANSWER Core-UUID: ffb7a71e-0045-4013-89e2-f8c8ccbcfb4b FreeSWITCH-Hostname: centos4-4-vm FreeSWITCH-IPv4: 172.26.200.250 FreeSWITCH-IPv6: %3A%3A1 Event-Date-Local: 2009-08-01%2020%3A04%3A52 Event-Date-GMT: Sat,%2001%20Aug%202009%2016%3A04%3A52%20GMT Event-Date-Timestamp: 1249142692414509 Event-Calling-File: switch_channel.c Event-Calling-Function: switch_channel_perform_mark_answered Event-Calling-Line-Number: 1776 Content-Length: 5233 Content-Type: text/event-plain Channel-State: CS_EXECUTE Channel-State-Number: 4 Channel-Name: sofia/internal/1001%40172.26.200.250 Unique-ID: 15826d29-b807-4955-a2f9-038e0b3ee6e2 Call-Direction: inbound Answer-State: answered Channel-Read-Codec-Name: PCMU Channel-Read-Codec-Rate: 8000 Channel-Write-Codec-Name: PCMU Channel-Write-Codec-Rate: 8000 Caller-Username: 1001 Caller-Dialplan: XML Caller-Caller-ID-Name: 1001 Caller-Caller-ID-Number: 1001 Caller-Network-Addr: 172.26.10.39 Caller-Destination-Number: 6666 Caller-Unique-ID: 15826d29-b807-4955-a2f9-038e0b3ee6e2 Caller-Source: mod_sofia Caller-Context: default Caller-Channel-Name: sofia/internal/1001%40172.26.200.250 Caller-Profile-Index: 1 Caller-Profile-Created-Time: 1249142681680114 Caller-Channel-Created-Time: 1249142681680114 Caller-Channel-Answered-Time: 1249142692414509 Caller-Channel-Progress-Time: 1249142691898434 Caller-Channel-Progress-Media-Time: 1249142681809352 Caller-Channel-Hangup-Time: 0 Caller-Channel-Transfer-Time: 0 Caller-Screen-Bit: true Caller-Privacy-Hide-Name: false Caller-Privacy-Hide-Number: false Other-Leg-Username: 1001 Other-Leg-Dialplan: XML Other-Leg-Caller-ID-Name: Extension%201001 Other-Leg-Caller-ID-Number: 1001 Other-Leg-Network-Addr: 172.26.10.39 Other-Leg-Destination-Number: sip%3A1000%40172.26.10.39%3A60152%3Brinstance%3D393ff32df3ec5e33%3Bfs_nat%3Dyes Other-Leg-Unique-ID: 94b59a38-57c4-4703-9c6e-9985d832d119 Other-Leg-Source: mod_sofia Other-Leg-Context: default Other-Leg-Channel-Name: sofia/internal/sip%3A1000%40172.26.10.39%3A60152%3Brinstance%3D393ff32df3ec5e33%3Bfs_nat%3Dyes Other-Leg-Screen-Bit: true Other-Leg-Privacy-Hide-Name: false Other-Leg-Privacy-Hide-Number: false variable_sip_received_ip: 172.26.10.39 variable_sip_received_port: 13488 variable_sip_via_protocol: udp variable_sip_authorized: true variable_sip_mailbox: 1001 variable_sip_auth_username: 1001 variable_sip_auth_realm: 172.26.200.250 variable_mailbox: 1001 variable_toll_allow: domestic,international,local variable_accountcode: 1001 variable_user_context: default variable_effective_caller_id_name: Extension%201001 variable_effective_caller_id_number: 1001 variable_outbound_caller_id_name: StarPound%20FreeSWITCH variable_outbound_caller_id_number: 0000000000 variable_callgroup: techsupport variable_sip_from_user: 1001 variable_sip_from_uri: 1001%40172.26.200.250 variable_sip_from_host: 172.26.200.250 variable_sip_from_user_stripped: 1001 variable_sip_from_tag: bd11f93c variable_sofia_profile_name: internal variable_sip_req_user: 6666 variable_sip_req_uri: 6666%40172.26.200.250 variable_sip_req_host: 172.26.200.250 variable_sip_to_user: 6666 variable_sip_to_uri: 6666%40172.26.200.250 variable_sip_to_host: 172.26.200.250 variable_sip_contact_user: 1001 variable_sip_contact_port: 13488 variable_sip_contact_uri: 1001%40172.26.10.39%3A13488 variable_sip_contact_host: 172.26.10.39 variable_channel_name: sofia/internal/1001%40172.26.200.250 variable_sip_call_id: ZTYwOGM2NDNmMzA5ZjFmOWRhZGJiNTZkMDEyMjQ4YTc. variable_sip_user_agent: X-Lite%20release%201103d%20stamp%2053117 variable_sip_via_host: 172.26.10.39 variable_sip_via_port: 13488 variable_sip_via_rport: 13488 variable_max_forwards: 70 variable_presence_id: 1001%40172.26.200.250 variable_switch_r_sdp: v%3D0%0D%0Ao%3D-%208%202%20IN%20IP4%20172.26.10.39%0D%0As%3DCounterPath%20X-Lite%203.0%0D%0Ac%3DIN%20IP4%20172.26.10.39%0D%0At%3D0%200%0D%0Am%3Daudio%2029826%20RTP/AVP%200%208%203%20101%0D%0Aa%3Drtpmap%3A101%20telephone-event/8000%0D%0Aa%3Dfmtp%3A101%200-15%0D%0A variable_remote_media_ip: 172.26.10.39 variable_remote_media_port: 29826 variable_read_codec: PCMU variable_read_rate: 8000 variable_write_codec: PCMU variable_write_rate: 8000 variable_use_profile: nat variable_record_stereo: true variable_transfer_fallback_extension: operator variable_numbering_plan: US variable_default_areacode: 918 variable_default_gateway: example.com variable_user_name: default variable_domain_name: 172.26.200.250 variable_socket_host: 172.26.200.251 variable_local_media_ip: 172.26.200.250 variable_local_media_port: 29370 variable_current_application_data: user/1000%40uat.agent.starpoundtech.net variable_current_application: bridge variable_dialed_user: 1000 variable_dialed_domain: uat.agent.starpoundtech.net variable_sip_redirect_contact_user_0: 1000 variable_sip_redirect_contact_host_0: 172.26.10.39 variable_switch_m_sdp: v%3D0%0D%0Ao%3D-%201%202%20IN%20IP4%20172.26.10.39%0D%0As%3DCounterPath%20eyeBeam%201.5%0D%0Ac%3DIN%20IP4%20172.26.10.39%0D%0At%3D0%200%0D%0Am%3Daudio%2063944%20RTP/AVP%200%208%203%20101%0D%0Aa%3Drtpmap%3A101%20telephone-event/8000%0D%0Aa%3Dfmtp%3A101%200-15%0D%0A variable_sip_nat_detected: true variable_endpoint_disposition: ANSWER variable_signal_bond: 94b59a38-57c4-4703-9c6e-9985d832d119 variable_originate_disposition: SUCCESS Event-Name: CHANNEL_BRIDGE Core-UUID: ffb7a71e-0045-4013-89e2-f8c8ccbcfb4b FreeSWITCH-Hostname: centos4-4-vm FreeSWITCH-IPv4: 172.26.200.250 FreeSWITCH-IPv6: %3A%3A1 Event-Date-Local: 2009-08-01%2020%3A04%3A52 Event-Date-GMT: Sat,%2001%20Aug%202009%2016%3A04%3A52%20GMT Event-Date-Timestamp: 1249142692414509 Event-Calling-File: switch_ivr_bridge.c Event-Calling-Function: switch_ivr_multi_threaded_bridge Event-Calling-Line-Number: 828 SendMsg 94b59a38-57c4-4703-9c6e-9985d832d119 call-command: execute execute-app-name: hold Content-Type: command/reply Reply-Text: +OK - I don't see the variable hold_music ... did you remove it? - I didn't. Moreover, I tried to set it explicitly using api uuid_setvar.