Troubleshooting: If Cannot identify the telephone line type. Screen Appears
The telephone line type may not be identified correctly when connection is made to an optical line or a control device such as a PBX (private branch exchange).
Follow the steps below to set the same line type (Touch tone, Rotary pulse 20 PPS, or Rotary pulse 10 PPS) as you are subscribed to.
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Tap OK.
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Select whether you hear beeps/boops (signal tones) when you dial from your telephone.
If you hear signal tones:
Tap Signal tones sound (tone dialing).
If you do not hear signal tones:
Tap Other tones sound (pulse dialing), and then proceed to Step 3.
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Tap same dial speed as line type you are subscribed to (Rotary pulse only).