Yealink SIP-T2 SERIES Administrator's Manual page 612

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Details of the Configuration Parameter:
multicast.codec
Description:
Configures the codec of multicast paging.
Example:
multicast.codec = G722
Note: It is not applicable to SIP-T19(P) E2 IP phones.
Web User Interface:
Features->General Information->Multicast Codec
Phone User Interface:
None
multicast.paging_address.X.ip_address
(X ranges from 1 to 10)
Description:
Configures the IP address and port number of the multicast paging group in the
paging list.
It will be displayed on the LCD screen when placing the multicast paging call.
Example:
multicast.paging_address.1.ip_address = 224.5.6.20:10008
multicast.paging_address.2.ip_address = 224.1.6.25:1001
Note: The valid multicast IP addresses range from 224.0.0.0 to 239.255.255.255.
Web User Interface:
Directory->Multicast IP->Paging List->Paging Address
Phone User Interface:
590
Phone User Interface
Parameters
m=mod_data&p=dsskey&q=load
Configure the multicast IP address
and port number for a paging list
key.
Configure the multicast paging
group name for a paging list key.
Assign a multicast paging key or a
paging list key.
Permitted Values
PCMU, PCMA,
G729, G722
String
Default
G722
Blank