Page 530 - Asterisk™: The Future of Telephony

See Also
QUOTE()

GLOBAL References global namespace
GLOBAL(varname)

Gets or sets the global variable specified.

GROUP Associates the channel into a set group
GROUP([category])

Gets or sets the channel group.
; Permit only one user to access the paging system at once.
exten => 8000,1,Set(GROUP()=pager)
exten => 8000,n,GotoIf($[${GROUP_COUNT(pager)} > 1]?hangup)
exten => 8000,n,Page(SIP/101&SIP/102&SIP/103&SIP/104)
exten => 8000,n(hangup),Hangup
See Also
GROUP_COUNT(), GROUP_LIST(), GROUP_MATCH_COUNT()

GROUP_COUNT Counts the number of channels in the specified group.
GROUP_COUNT([groupname][@category])

Counts the number of channels in the specified group. Will return the count of the
current channel if the groupname is not specified.

See Also
GROUP(), GROUP_LIST(), GROUP_MATCH_COUNT()

GROUP_LIST Lists channel groups
GROUP_LIST()([groupname][@category])

Gets a list of the groups set on a channel.

See Also
GROUP(), GROUP_COUNT(), GROUP_MATCH_COUNT()

502 | Appendix E: Asterisk Dialplan Functions