Vizio EXES-6000 CP-64 When the party you call is in a high noise level area, Position

4) Hands-free Substation Model (HF-620S/630S/631S/640S) NP Type

	Speaker
Speaker volume switch	In-use lamp

Privacy switch

Dial keys

Microphone

key

HF-640S

HF-630S

HF-620S

HF-631S

<Making a call >

1.Touching the key makes a call to the designated other station whether the Privacy switch on your station is in the ON position or OFF position.

2.Start conversation after the calling tone stops.

3.When the line is busy, a busy tone is heard and you can camp on the line by simply waiting. As soon as the line becomes free, your call is automatically connected.

4.During a call attempt made by means of the continu- ous calling tone, you can break in on the calling tone

by continuously depressing the key to make a voice call through the station speaker of the called party.

5.When the party you call is in a high noise level area,

your continuously depressing the key allows one-way conversation to that party. As long as you

depress the key, your voice has dominance

and releasing the key will reverse the one-way conversation from that party to you.

6.To terminate the conversation, depress the key.

< Responding to a call >

[In the case that the Privacy switch is in the OFF

position.]

7. Respond to the call after the calling tone stops.

[In the case that the Privacy switch is in the ON posi- tion.]

8.The continuous calling tone function is made avail- able to any station when its Privacy switch is in the

ON position. Depressing the or key makes the continuous calling tone stop and puts the station in the conversation mode.

Note.

1.The sound volume of the speaker may be adjusted by means of the 2-stage volume selector (VOL) switch.

2.The HF-640S is fitted with no Privacy switch, nor

key, nor key.

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