Call Features353Phone UIT54S/T52S/T48S/T48G/T46S/T46G/T29G:Menu->Features->Paging List->Edit->AddressT42G/T42S/T41P/T41S/T40P/T40G/T27P/T27G/T23P/T23G/T21(P) E2/T19(P) E2:Menu->Features->Paging List->Option->Edit->Address[1]X ranges from 1 to 31Multicast Listening Group ConfigurationYealink IP phones support up to 31 groups for listening. You can assign multicast IP address with channelfor each group, and specify a label to each group to identify the phones in the group, such as All, Sales, orHR.The following table lists the parameters you can use to configure multicast listening group.Parameter multicast.listen_address.X.ip_address[1] .cfgDescriptionIt configures the multicast address and port number that the IP phone listens to.Example:multicast.listen_address.1.ip_address = 224.5.6.20:10008Note: The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255.PermittedValues IP address: portDefault BlankWeb UI Directory->Multicast IP->Multicast Listening->Listening AddressParameter multicast.listen_address.X.label[1] .cfgDescriptionIt configures the label to be displayed on the LCD screen when receiving the multicastpaging calls.Example:multicast.listen_address.1.label = Paging1PermittedValues String within 99 charactersDefault BlankWeb UI Directory->Multicast IP->Multicast Listening->LabelParameter multicast.listen_address.X.channel[1] .cfgDescriptionIt configures the channel that the IP phone listens to.Example:multicast.listen_address.1.channel = 2