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DPH-70L User's Guide
10 Appendix B: Troubleshooting
DPH-70L can display the following error messages at different error conditions. These messages
aid in troubleshooting any error conditions.
All outgoing calls are PSTN calls. It does not dial in Internet mode.
To make a call in Internet mode, you have to press VoIP button first. Please refer to the user
manual for more details. If you don't press VoIP, DPH-70L will dial out in PSTN mode.
"ERR0: Number Busy"
This message is displayed when the called phone is busy.
"ERR01: ISP Server Not Responding"
It is displayed when the Internet access modem is not responding properly. If this happens please
check the Internet access phone number and country code in configuration menu. If you call
Internet access phone number from a phone you will hear modem noise.
"ERR02: ISP Line Busy"
This message is displayed when the Internet access line is busy. This may happen during peak
hours.
"ERR03: Configure the phone and try again"
This message is displayed if you try to use DPH-70L without configuring important parameters.
You need to configure the Internet Service Provider (ISP) access parameters and VoIP (Internet
Telephone) VoIP parameters to use the phone for VoIP calls.
"ERR04: ISP Connection Not Established"
It is displayed when Internet access server is down. Please contact the ISP customer service or
try again after some time.
"ERR05: Bad phone line"
It indicates that your phone line may not connect to the Internet at sufficient speed to establish
Internet phone calls. Please try another phone line or contact customer support.
"ERR06: Phone Line not connected"
This message is displayed if DPH-70L is not connected to the phone line properly. Please check
the phone line connection and try again. Test the phone line with a normal phone if it persists.
If DPH-70L is behind EPABX you may have to program DPH-70L to look for secondary dial tone
or introduce a delay. Please refer to configuration section for more information.
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