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Uknown URI Scheme T46G - Printable Version

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Uknown URI Scheme T46G - chrisb - 09-10-2016 01:21 AM


IT assistant here. Some of the sales team here is experiencing dropped incoming calls. The calls can last a minute or two before the phone emits a busy signal like noise and then displays the message "Uknown URI Scheme".

The only forum post I've found relating to this issue is regarding dialing out from the history page, and I've already applied that fix to my configuration file. No change in number of error messages received.

This is an intermittent problem, but has become more frequent after upgrading the firmware to Is there a more stable version of the firmware that I should be using that solves this issue? Is anyone else experiencing this issue?

I'll be ready to answer any questions to help figure out the issue.



RE: Uknown URI Scheme T46G - Karl_Yealink - 09-19-2016 03:12 PM


Seem you don't use the latest firmware, would you please upgrade to the latest version then test again.

Upgrade the phone then reset and test again. If it still can't work, please help me to get some info below.
1. Only occur during incoming call? How about the outgoing call?
2. Seem this problem won't occur ever time, how frequent?
3. How many phones? All phones have this problem?
4. Would you please help me get the trace files, we can check something from them.
You can know the method via the FAQ:

Please send the files to me via email(, and please copy this thread, so I can know what problem.
Thank you.