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Brandon Miller avatar image
Brandon Miller asked Brandon Miller commented

Cisco SPA 525G phones get garbled.

I just set up my new wireless Cisco SPA 525G phones and they seem to have problems where the caller's voice gets garbled. Anyone else have this problem?  It seems to be more incoming calls than outgoing.
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robbenn-frenette138 avatar image
robbenn-frenette138 answered
Have you set up QOS? What is your internet type? and what are your speeds? 
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Brandon Miller avatar image
Brandon Miller answered
I hate to sound ignorant, but what is QOS? We have Optimum, a cable provider. Don't know speeds either.
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robbenn-frenette138 avatar image
robbenn-frenette138 answered
QOS dedicates bandwidth directly to certain devices - go to speedtest.net and run a test and let us know what the upload and download speeds are.  Any VoIP phones over WiFi don't tend to work well.   
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robbenn-frenette138 avatar image
robbenn-frenette138 answered
That would be why - your speed is not high enough to handle a VoIP call over WiFi. Contact support, they may have suggestions
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Brandon Miller avatar image
Brandon Miller answered Brandon Miller commented
download=9.99 and upload only .56
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mike avatar image mike commented ·
Hi Brandon,  Here are a couple links to help you out. As Rob mentioned above the speed is not sufficient but these links will also help you out. 

This page is the best place to start troubleshooting. 
VoIP QoS Frequently Asked Questions

Also, perform a   Bandwidth  and  QoS  test to determine the current download and upload speed of your Internet connection.
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Brandon Miller avatar image Brandon Miller commented ·
Thanks Mike
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Brandon Miller avatar image
Brandon Miller answered
Thanks Rob, I appreciate it.
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