Aastra 9617 Online User's Manual page 232

Making a second call on your other line
You may want to make a call on your other line without
hanging up your first call.
To make a call on your other line:
1 Press the other line key. The original line is put on
hold.
2 Dial the telephone number.
Switching between callers
To switch to the caller that is on hold, press the
¬
appropriate Line key ( ) for that caller. The other
caller is automatically put on hold.
For more information, refer to Answering a call on the
other line on page 265.
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