NEC Univerge sv8500 Manual page 554

<Priority Paging>
By dialing the access code of Priority Paging, the station/ATTCON is allowed to access paging trunk in-
terrupting other user's paging in progress.
amplifier
MCMG
interrupted
(1)
(1) during paging trunk is used...
(2) Dial the access code of Priority
Paging first, and then dial the access
code of Paging Access.
VOL.2-301
MCMG [SCA-4LC2COTA/MG-4LC2COTA]
speaker
Mr. OO.....
(2)