I have a Yealink T46G registered at our Freeswitch machine. MWI is enabled on the Yealink Phone, I see a "message-summary" entry in sip_subscriptions. So I think, presence is setup fine Content of the sip_subscriptions table: "proto" "sip_user" "sip_host" "sub_to_user" "sub_to_host" "presence_hosts" "event" "contact" "call_id" "full_from" "full_via" "expires" "user_agent" "accept" "profile_name" "hostname" "network_port" "network_ip" "version" "orig_proto" "full_to" "id" "sip" "200" "fs00.my.domain" "200" "fs00.my.domain" "" "message-summary" """Peter3 Buero"" <sip:200@192.168.1.72:5060>" "0_3056780279@192.168.1.72" """Peter3 Buero"" <sip:200@fs00.my.domain:5060>;tag=1082071637" "SIP/2.0/UDP 192.168.1.72:5060;branch=z9hG4bK2245575863" "1513683832" "Yealink SIP-T46G 28.80.0.130" "application/simple-message-summary " "internal" "fs01.my.domain" "5060" "192.168.1.72" "-1" "" "<sip:200@fs00.my.domain:5060>;tag=WdayfEpssASN" "2821206" Events are enabled on the freeswitch console /events MESSAGE_QUERY MESSAGE_WAITING When a voicemail is recorded, I see a number of recurring events on the console (see below), but no NOTIFY message is sent to the phone. However, after a while (after 10min or even after hours) the phone receives its message. When I delete all VM messages, the MWI is never sent to the phone, although messages are prepared (MWI-Messages-Waiting: no), as I can see them on the console. If I set the parameter “send-message-query-on-register“ in internal sofia profile, then MWI is updated with every register to the phone. Alos on every restart of the phone. But as we cannot use short intervals intervals due to some reason, this is not the solution. Anybody has a hint, how to solve this? Example messages: RECV EVENT Event-Name: MESSAGE_QUERY Core-UUID: 1ec11171-65e9-49e5-a043-379951acfef1 FreeSWITCH-Hostname: fs01.my.domain FreeSWITCH-Switchname: fs01.my.domain FreeSWITCH-IPv4: 192.168.1.9 FreeSWITCH-IPv6: ::1 Event-Date-Local: 2017-12-19 12:27:40 Event-Date-GMT: Tue, 19 Dec 2017 11:27:40 GMT Event-Date-Timestamp: 1513682860739342 Event-Calling-File: sofia_presence.c Event-Calling-Function: sofia_presence_sub_reg_callback Event-Calling-Line-Number: 1736 Event-Sequence: 16929 Message-Account: sip:200@fs00.my.domain VM-Sofia-Profile: internal VM-sub-call-id: 0_3056780279@192.168.1.72 RECV EVENT Event-Name: MESSAGE_WAITING Core-UUID: 1ec11171-65e9-49e5-a043-379951acfef1 FreeSWITCH-Hostname: fs01.my.domain FreeSWITCH-Switchname: fs01.my.domain FreeSWITCH-IPv4: 192.168.1.9 FreeSWITCH-IPv6: ::1 Event-Date-Local: 2017-12-19 12:27:40 Event-Date-GMT: Tue, 19 Dec 2017 11:27:40 GMT Event-Date-Timestamp: 1513682860899354 Event-Calling-File: mod_voicemail.c Event-Calling-Function: actual_message_query_handler Event-Calling-Line-Number: 4036 Event-Sequence: 16931 MWI-Messages-Waiting: yes MWI-Message-Account: sip:200@fs00.my.domain MWI-Voice-Message: 1/0 (0/0) Sofia-Profile: internal sub-call-id: 0_3056780279@192.168.1.72 -- With kind regards Peter Steinbach