On recently upgraded SPA525G to 7-2-5 release, we are having a problem with feedback to callING party when using speaker phone if speaker phone volume is greater than or equal to 8. We have observed this on EVERY SPA525G that we have in the lab, on our internal system and on a customer install. We only noticed this after upgrading to release 7-2-5.
Speaker phone volume of 8 is not a workable situation in that hearing the calling/called party is VERY difficult.
The feedback is only minor on the SPA525G phone when using speaker phone, but the majority of feedback is to the calling/called party on their end.
Anyone experiencing this problem?
Anyone have any thoughts on this issue?
We have attempted the normal troubleshooting issues and have found it only appears to apply to the SPA525 7-2-5 release.
One last observation is that in quieter background noise situations, the feedback on the calling/called party gets significantly worse as background noise becomes quieter.
If this could be an issue with the sound upgrade included in 7-2-5, how do we turn off the high-band sound?
Message was edited by: finalconnect NOTE: All UC520 systems with 7.0.3 software.