Avision AM7100NF User Manual - Manual (Page 117)

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To send a fax to a remote fax machine connected to an extension phone jack,
1. Dial the representative number of the other party’s telephone exchange, the
'，' code, and then the other party’s extension number.
For international dial sequence:
country code + area code + representative number
+ the '，' code + extension number
For example: 88635782388，xxxx
For domestic dial sequence:
area code + representative number + the '，' code + extension number
For example: 35782388，xxxx
2.
Press the Start button.
Note:
1. To display the '，' code, press the Pause button.
2. Each ',' code causes a 2-second delay.
3. The delay caused by the other party’s telephone exchange depends on how
long it takes for the other party’s telephone exchange to transfer the call.