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328
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UC520 POTS Call Volume

jbenson
Level 1
Level 1

We have just installed a UC-520 at a client site. When a call comes in or goes out the volume that the person on the ouotside hears is perfect. However, the user on the IP phone has a hard time hearing the outside person. Looking for some possible solutions.

Jason

3 Replies 3

paolo bevilacqua
Hall of Fame
Hall of Fame

Do you have analog (FXO) lines to PSTN?

If so, please follow document to adjust to optimal impedance:

http://cisco.com/en/US/tech/tk652/tk701/technologies_tech_note09186a0080477a06.shtml

After that,if still volume problem, adjust audio gain under voice-port.

Hope this helps, please rate post if it does!

Thank you for your help... we adjusted the input gain at the port level. Interesting read about the impedance though!

Thanks again, your help was perfect. Thread rated.

Jason

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