Grandstream GXP21xx Series User Manual User Manual
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FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
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Figure 7 Sending Multicast Page Configuration by using MPK
GXP21xx/GXP14xx supports 5 codecs for Multicast Paging. User can specify the multicast page sending 
codec under Web UI Settings ->Multicast Paging->Multicast Paging Codec. The supported codecs are 
PCMU, G.729A/B, PCMA, G.726-32, G.723, iLBC and G.722. 
After configuring the sender multicast page, users could make a multicast page to remote parties. 
1. Press the configured MPK or Line Key to send a multicast page.
The LED light of the key will turn green and the phone screen will show the multicast address with
defined label.
2. Press the “EndCall” soft key to end the multicast paging.
Receive Multicast Paging 
To receive multicast page, GXP21xx/GXP14xx must be well configured to listen to the right address and 
port. The configurations are under Settings->Multicast Paging. There are 10 listening address supported 
with priority levels 1 to 10. Optionally, each of these addresses can also have a label that will display on 
LCD when the page is received. 
Note
: The multicast page configuration requires rebooting to take effect.
