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The Graveyard - Products No Longer Supported => D-Link VoIP => Response Point/Voice Center => Topic started by: nd4speed on April 01, 2009, 04:46:04 PM

Title: Audio cutout issues
Post by: nd4speed on April 01, 2009, 04:46:04 PM

I have several of these phones on my network and noticed a problem that a user brought to my attention that seems to be prevailant on all the phones I've tested.

Make a phone call and wiggle the cable connecting the handset and the phone base (in the middle of the cable or near the jacks), and I detect audible cutouts in the call. Is anyone else having this issue? Is this a build quality issue with this model of phone, or do I need to change gateway settings?

I'm on SP2, and have the latest firmware on everything (01.14.19 on the phones). TIA.

Title: Audio cutout issues
Post by: nd4speed on April 09, 2009, 09:00:12 AM

I think I narrowed down the issue. It seems like the echo cancellation feature of the PSTN gateway is causing this issue. When I disable this feature the audio cutouts stop completely, but I get a slightly delayed echo of my voice while on a call.
I've tried playing with codecs (going from G.711u to G.729) and there was no difference in audio cutouts. I'm going to try leaving echo cancellation disabled and play with the "VoIP to PSTN (RX)" settings.