INSTALLATION

21.1.3

Replacing the Battery

If the standby time for the cordless phone becomes too low, replace the battery with a new one. Contact the system administrator or your certi- fied Aastra Sales partner for information on new batteries.

The battery is easy to replace. It is attached inside the battery lid and is connected to the cordless phone in such a way as to avoid misinsertion. Attach the battery as described in figure 15 on page 118.

Figure 15:Unlock the lid and remove the battery

21.2 Accessories

21.2.1Headset

If you frequently use the phone or want to have both hands free, it is recommended that you use a headset.

The headset for the DT690 cordless phone comes in three versions:

With the microphone integrated in the cable

With the microphone on a boom

With hearing protection

Connect the headset to the headset connector marked on the right side of the phone.

21.2.2

Belt Clip

The clip on the back of the phone lets you attach the phone to a belt or similar.

1424-EN/LZT 103 088 Uen D3 2010-11-16

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Image 118
Aastra Telecom DT690 manual Accessories, 21.2.1Headset, Replacing the Battery, Belt Clip