DirecTV DVR40 Manuel D’Utilisation

C h a p t e r   6

. Off by default. When Set ‘Phone Avail.’ Detection is on, 

the DVR determines whether the phone line is in use by detecting voltage on the line. This 
allows it to avoid disrupting a call in progress (such as another modem call). However, if 
you are experiencing “Failed, Line unavailable” errors, or if the DVR is not making daily 
calls, you may have a low-voltage phone system that the DVR cannot detect. In this case, 
try selecting “Off” for ‘Phone Avail.’ Detection. 

With ‘Phone Avail.’ Detection turned off, the DVR must pick up the line to check for a 
dial tone. If you are on the phone when the DVR tries to call, you may hear a click on the 
line. If you have another modem call in progress (on your computer or other device), that 
call may be disrupted if the DVR attempts to make a service call.

If you turn off ‘Phone Avail.’ Detection and you have a standard dial-tone, turn on Dial 
Tone Detection (described next).

. On by default. When this is on, the DVR checks for a dial tone 

before dialing. If this is on and you have a non-standard dial tone (for example, an analog 
PBX system), or a stuttering dial tone (as some voice messaging systems have), the DVR 
will be unable to detect the dial tone and will not make its daily call. 

This screen provides a list of hints for troubleshooting problems with your phone 
connection. To view all of the hints, use the CHAN DOWN button to scroll down the 
page; use the CHAN UP button to scroll up the page.

You can set your remote control to control power, muting and volume on your TV or A/V 
Receiver. See page 111 for instructions.