An extension user can make a voice announcement to several people at once.
The announcement is heard through the built-in speakers of proprietary telephones (PTs) and/or external pagers (loudspeakers) which belong to a paging group.
The paged person can answer the page from a nearby telephone.
It is possible to page with a call on hold in order to transfer the call.

Paging Deny
It is possible to deny being paged on an extension basis.

Paging Group
Each paging group consists of extension groups and external pagers. One extension group or external pager can belong to several paging groups.
An extension can page the extension members and the external pagers of the same paging group only. If no extension group is assigned but an external pager(s) is assigned to a paging group, any extension can page the external pager(s) in the paging group.
( 2.2.2 Group)
[Example]
[Programming Example]
Constituent
^*1
Extension Groups of a Paging Group [640]
^*2
External Pagers of a Paging Group [641]
Explanation:
Paging Group No.
Explanation
01
Extensions in extension group 001 can page or be paged.
02
Extensions in extension groups 002 and 003 can page or be paged.
03
Extensions in extension group 003 can page or be paged. They can also page through the external pager 1.
04
All extensions (all extension groups) can page through the external pager 2.
05
All extensions (all extension groups) can page or be paged. All external pagers can also be paged.