Algo 8188 Installation/Configuration Manual page 40

ALGO
To configure additional page extensions (up to 50) click "Enable"
beside the target extension and enter the Extension, Authentication
ID, and Authentication password.
The 8188 will auto-answer any inbound calls received on these
numbers and provide a voice paging path and multicast if configured.
Note that only a single call can be active at a time.
Note: Some SIP phone systems may not support this feature if they
limit the number of extensions that can be registered on a single
device.
Multicast Zone Definitions can be found in "Advanced Settings >
Advanced Multicast".
Document 90-00068
2017-03-28
Page 40
Algo Communication Products Ltd
4500 Beedie St Burnaby BC Canada V5J 5L2
www.algosolutions.com
8188 SIP Ceiling Speaker
(604) 454-3792
support@algosolutions.com