D-Link DPH-541 User Manual - Page 49
Troubleshooting
UPC - 790069296475
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Troubleshooting 1. Unable To Register With The SIP Server? • Make sure the Internet and the SIP proxy server are reachable. • Make sure the SIP account and the password are correct. 2. Which Codec Should I Choose? • As which codec choice is depending on what codec is supported on both end of the VoIP host. Generally a codec with low bandwidth consumption and high voice quality is a good codec. 3. How Good Is The Call Quality? • Technology advances in IP telephony transportation have made Internet calling as good as or better than normal PSTN connections. This is mostly effective for high speed Broadband connections, whereas dial up services have some way to go before delivering the quality of PSTN calling. D-Link DPH-541 User Manual 49
D-Link DPH-541 User Manual
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Troubleshooting
1. Unable To Register With The SIP Server?
• Make sure the Internet and the SIP proxy server are reachable.
• Make sure the SIP account and the password are correct.
2. Which Codec Should I Choose?
• As which codec choice is depending on what codec is supported on both end of the VoIP host. Generally a
codec with low bandwidth consumption and high voice quality is a good codec.
3. How Good Is The Call Quality?
• Technology advances in IP telephony transportation have made Internet calling as good as or better than
normal PSTN connections. This is mostly effective for high speed Broadband connections, whereas dial up
services have some way to go before delivering the quality of PSTN calling.