VTech Contemporary Series A2100 Master User Manual page 65

Telephone operation
Analog corded 1-line - A2210
Hold
When a call is placed on hold, any parallel phone that tries to use the same phone line will take the call off hold and pick the call.
To place a call on hold:
During a call, press HOLD on the telephone base to place that call on hold. The HOLD key flashes when the call is placed
1.
on hold.
2. To release the call from hold, press
Data port
You can connect your modem or fax machine to the telephone line through the DATA port.
/SPEAKER, HOLD or lift the handset from the telephone base cradle.
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