User Guide
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CRYSTAL
V-1.0
Extension No. (Default Mode)
Extension No. (Direct Mode)
Auto call Back (extn / jn)
Caution: -All System Programming can be done only in Main Password mode from any Extn. in
Tone / DTMF mode at the site.
(1) INTERCOM Call : To make an internal call
X = extension number 1,2,3 and 4
Start talking when other extension answers
Hang up when conversation is over
v If you get busy tone ( i.e. the dialed extn is busy ), hang up & try again later or use the “Auto Call Back” function .
(2) TRUNK / JNCALL :To make an outside call
Start talking when called party answers
Hang up when conversation is over
v If you get busy tone after JN access, hang up & try again later or use the “Auto Call Back” function .
(3) ANSWERING / RECEIVING CALLS : To answer a call
Hang up, when conversation is over
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