White static like noise on all incoming calls


Hi All

just installed a GRP2612W and having trouble with call quaility ;/
outgoing calls are crystal clear .however incoing calls can hardly be heard due to awful white noise and other strange noises.
I updated the frimware to thinking that may help … nope ;/

Read a codec issue may be the cause … but with the updated web UI on the phone cant find anywhere to select an alternative codec.

any help appreciated




which pbx Steve


And how is the phone connected, Ethernet or WiFi?

If you change connection types does one work better than the other?

From a codec perspective, set all of them with the exception of the bottom of the list to g711a/PCMA and set the bottom to g729.


its wifi but no different with ethernet ,. I cant see codecs anywhere in the web GUI or settibngs on the phione ;/
I did reply back via email but it moght not have gone throught.
It going thru Advance PBX on the cloud thru our ip phone people.


do you have admin rights to the handset ?


yes i do


set up a free sip account on the 2nd account of the handset and see if you can rectify the same problem as this will verify if it is your sip provider or something else.


The codecs are there and referred to as vocoders -
Preferred Vocoder
(Choice 1 – 8)
Multiple vocoder types are supported on the phone, the vocoders in the list is
a higher preference. Users can configure vocoders in a preference list that is
included with the same preference order in SDP message.


There could be a few reasons why you are experiencing white static-like noise on all incoming calls on your phone.

One possibility is that there is an issue with your phone’s microphone. You can try restarting your phone, or testing the microphone using the phone’s built-in testing tools to see if that resolves the issue.

Another possibility is that the noise is coming from your network provider. You can contact your network provider and check if they are aware of any network issues in your area that could be causing the noise.

Another possibility is that you have a poor signal quality. If you are in a place where the signal is weak, this can cause interference and noise on the call.

A possible solution is to move to a different location, or try to make the call again later when you are in a better signal area.

You can also check the phone settings and see if there is any option to reduce the noise or call quality improvement.

If none of these solutions work, you may need to contact your phone manufacturer for further assistance.


Hey all
sorted out the noise … not sure how :confused:
i think the codecs were wrong and now everything is clear as a bell
Thnaks everyone for the assist !!