Centrex/Exchange Line Switchhook Flash - Nortel Meridian M1250 User Manual

Basic call processing

Centrex/Exchange Line Switchhook Flash

Centrex Switchhook Flash (THF) allows you to signal the Central Office during an established call to
request activation of a Centrex service such as call transfer or three-way calling.
1
2
Press the Switchhook
Flash key.
Press the DN before the
tone ends.
You hear a special dial
tone.
When you hang up, or
press the RLS key, the
original connection and
the THF message
terminate.
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