AASTRA 4147 Medium for MX-ONE (TSE) User Guide EN - Manual (Page 19)

19 Dialog 4106 Basic/Dialog 4147 Medium
Outgoing Calls
Wait for dial tone
Sometimes it is necessary to wait for a new dial tone after dialing
the prefix digit when making an external call. In such situations, you
must store the pause for a new dial tone into the number: ©
Press.
Manual dial pause control:
You can control the length of a dial pause manually if you store the
pause after the fifth digit or later. This feature is very useful, if you
are connected to a PBX that requires a new dial tone for extension
numbers.
Example:
You want to talk to Steven. Steven’s company has the number
12345678, and his extension is 1234, so the complete number is
12345678-1234. To wait for a new dial tone, you have to store a
pause before the extension number. ©
Press.
The phone number is dialed without the extension, in this example
12345678. ©
Press when the new dial tone is received.
Now the extension number is dialed.