Format: Pat the hook and * + extension number
Description: Allows you to add a third part to a two-parts conversation and make a three-
parts conference. You can have only two extensions with one C.O. Line.
Operation: Pat the hook and press # #
The occupying exterior line can be reversed by exchanger. Then another exterior line
can be transferred or talked by interphone, which can solve the problem that the incoming
callwaits long for answering or even no answer. Therefore the function of the exchanger is
largely extended.
Operation: * + Extension number
Description: Make internal call between extensions with direct outward mode.
Operation: Dial the extension number directly.
Remark: Intercom calling is free of charge.
The exterior duration time of C.O.Line call holding is 2 minuters.
Operation: * 0
( at direct outward mode)
0
at indirect outward mode)
（
Operation: * # 60
( at direct outward mode )
The number of DU DU tone indicate the extension number.
Extension number query
( Through DU DU tone)
Summary of Contents for PABX MD308
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