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+-- Forum: IP Phone Series (/forumdisplay.php?fid=4)
+--- Forum: Phone specific topic (/forumdisplay.php?fid=12)
+---- Forum: T2xP Series (/forumdisplay.php?fid=21)
+---- Thread: T26P background noise (/showthread.php?tid=4166)
T26P background noise - ceramirez74 - 07-26-2015 10:56 PM
Hi there,
I just installed a few T19P, one T41P and one T26P IPPhones and the customer immediately started to complain about a background noise that is mostly present at pauses talking and calls to PSTN, however, is also present in between extensions calls in lower intensity, i just compare the codecs on each ip phone and they are in the following order:
PCMU
PCMA
G729
G722
Also in the Yeastar Standard series is as following:
u-law
a-law
GSM
H261
H263
S263P
H264
G722
G726
G729A
SPEEX
I just chaged the Max delay from 240 to 300 in the Yealink jitter buffer parameters and now are as follows:
Type: adaptive
Min Delay: 60
Max Delay: 300
Normal: 120
The Firmware release are:
T19P: 31.72.0.75
T26P: 6.73.0.50
T41P: 36.72.0.55
I would like to have a recomendation or best practices in order to avoid this background noise.
Thanks in advanced.
RE: T26P background noise - Yealink_Michael - 07-27-2015 05:31 PM
hi
for this issue, please try below :
1.upgrade to the last firmware , firmware down link :
http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage
click according to the corresponding model
2. reset to factory and test again
if issue still exist , please provide the trace file needed and send to support@yealink.com . we will try our best to solve
trace file including pcap file, config bin and syslog file , for how to get them , please refer to the FAQ below:
http://forum.yealink.com/forum/showthread.php?tid=1319
RE: T26P background noise - ceramirez74 - 07-28-2015 03:22 AM
Thanks for your recomendations, in fact, the T19P and T26P has the latest firmware version, a will proceed to capture some traces and a will be back to you...