Advanced Features377You can configure a message waiting indicator (MWI) to inform users that how many messages are waiting in theirmailbox without calling the mailbox. Yealink phones support both audio and visual MWI alert when receiving newvoice messages.TopicMWI for Voice Mail ConfigurationMWI for Voice Mail ConfigurationYealink phones support both solicited and unsolicited MWI.Unsolicited MWI: The IP phone sends a SUBSCRIBE message to the server for message-summary updates. The serversends a message-summary NOTIFY within the subscription dialog each time the MWI status changes. Unsolicited MWIis a server related feature.Solicited MWI: The IP phone can subscribe the MWI messages to the account or the voice mail number. For solicitedMWI, you must enable MWI subscription feature on the phones.The following table lists the parameters you can use to configure MWI for voice mail.Parameter account.X.subscribe_mwi[1] .cfgDescription It enables or disables the phone to subscribe the message waiting indicator.PermittedValues0-Disabled, the server automatically sends a message-summary NOTIFY in a new dialog each time theMWI status changes. (This requires server support).1-Enabled, the phone will send a SUBSCRIBE message to the server for message-summary updates.Default 0Web UI Account->Advanced->Subscribe for MWIParameter account.X.subscribe_mwi_expires[1] .cfgDescriptionIt configures MWI subscribe expiry time (in seconds).The phone is able to successfully refresh the SUBSCRIBE for message-summary events before the expir-ation of the subscription dialog.Note: It works only if “account.X.subscribe_mwi” is set to 1 (Enabled).PermittedValues Integer from 0 to 84600Default 3600Web UI Account->Advanced->MWI Subscription Period (Seconds)Parameter account.X.mwi_parse_terminated[1] .cfgDescription It enables or disables the phone to parse the Terminated attribute in the received MWI NOTIFY message.PermittedValues0-Disabled1-EnabledDefault 0Parameter account.X.sub_fail_retry_interval[1] .cfgDescription It configures the interval (in seconds) for the phone to retry to re-subscribe when subscription fails.Permitted Integer from 0 to 3600
