Making Calls28Using the Base Unit• To switch to the handset while using the base unit speakerphone:— If the handset is off the base unit, press [C] or [s] on the handset, then press[SP-PHONE] on the base unit.— If the handset is on the base unit, just lift up.To adjust the speaker volume during a conversationTo increase volume, press VOLUME [>].To decrease volume, press VOLUME [<].• There are 8 volume levels. If you try to increase/decrease volume when it is at themaximum/minimum level, the base unit will beep 3 times.To redial the last number dialedPress [SP-PHONE], then press [REDIAL].To put a call on holdPress [HOLD/CONF] during a conversation.• The SP-PHONE indicator flashes.To return to the call, press [SP-PHONE].• The handset user can also take the call by pressing [C] or [s].• If another phone is connected on the same line (p. 9), you can also take the callby lifting its handset.• If a call is kept on hold for 6 minutes, an alarm tone will start to sound. After 4additional minutes on hold, the call will be disconnected.1 Press [SP-PHONE].• The SP-PHONE indicator lights.2 Dial a phone number.3 When the other party answers, talkinto the MIC (microphone).4 To hang up, press [SP-PHONE].• The indicator light goes out.Hands-free Digital Duplex SpeakerphoneFor best performance, please note the following:• Talk alternately with the other party in a quiet room.• If you or the other party has difficulty hearing, press VOLUME [<] to decreasethe speaker volume.Base Unit[REDIAL]VOLUME [<], [>]MIC[HOLD/CONF][SP-PHONE]and Indicator