On Aug 25, 2008, at 11:58 PM, Daniel Melnechuk wrote:
> On Aug 13, 2008, at 6:10 PM, Kristijan Vrban wrote:
>
>> hello, do you have DTMF inband (in audio)? activ in your ATA?
>> Disable it.
>> Try RTP (RFC2833) only. Any differences?
>>
>> Kristijan
>>
>> Daniel Melnechuk schrieb:
>>> Dear CallWeaver Users,
>>>
>>> Had a Linksys PAP2T-NA ATA which started putting loud beeps into the
>>> incoming and outgoing sound channels. Not every call, and seemingly
>>> random as to when it would start and how often they would be. Then
>>> it
>>> started saying "Transferring call" during my phone call and would
>>> drop
>>> the call i had. Then the PAP2T died completely.
>>>
>>> While the PAP2T was getting funky before it died, i went back to
>>> using
>>> a softphone (X-Lite). Absolutely no beeps or transfers. It was
>>> then i
>>> suspected the PAP2T. I had also updated to the latest release of CW
>>> 1.2.0.1 but that did not help.
>>>
>>> After the PAP2T died, i figured it was just the PAP2T. So it was in
>>> warranty and i got it replaced with a SPA2102 that also does T.38
>>> (my
>>> sip service provider is adding T.38).
>>>
>>> Not more than a few calls after configuring the SPA2102, it started
>>> to
>>> beep too; randomly on some calls, etc. I have not gotten the
>>> "transferring call" thing yet.
>>>
>>> And all during this time, calls with softphones on multiple
>>> computers
>>> do NOT get any beeps of this kind at all.
>>>
>>> The only configuration to the SPA2102 other then setting IP address,
>>> account, IP of callweaver, is that i have changed is the length and
>>> patterns of the distinctive rings (it has 9 of them). I set which
>>> ring
>>> pattern i want in the SIP header based on incoming calls by setting
>>> var ALERT_INFO before dialing an extension.
>>>
>>> Questions:
>>>
>>> 1. Has anyone experienced this problem of getting beeps with Linksys
>>> SPA2102 or PAP2T in use with Callweaver?
>>>
>>> 2. Does anyone have any idea why the SPA2102 could be making these
>>> beeps?
>>>
>>> Any thoughts appreciated.
>>>
>>> Peace,
>>> Dan
>
> Hi Kristijan!
>
> Yes, i had the DTMF set to "AUTO" in ATA which would let it try
> whatever it wants i guess. I set it to just RTP and almost completely
> has cured the beeps. Thank you!
>
> Since you responded, i have heard beeps just once and my partner has
> once got the "Transferring Call" and then dropped phone call. I am
> going to test turning off features in the ATA to see if that goes away
> too. Since the problem only happens on the analog phones and ATA (and
> not softphones) the problem must be there...
>
> Thanks again. I'll report back about "Transferring call" and if
> successful in not having that happen again. Of course waiting for
> something not to happen can take a while!
>
> Peace,
> Dan
Ok, so the beeps are still there after setting to use AVT(RTP) for in
the SPA2102. But then i found this link:
http://www.dslreports.com/forum/r20613336-Linksys-SPA2102R-Firmware-Update-525
that talked about firmware 5.2.5 and that a setting had changed to
help with random beeps (yay!):
DTMF strict mode did not stop all “talk-off” beeps. Now the signal
level threshold for qualifying DTMF digits is set higher to prevent
false DTMF detection. (CSCso34152)
NOTE: The recommended settings for AVT transmission are as follows:
DTMF Tx Method: AVT
DTMF Tx Mode: Strict
DTMF TX Strict Hold Off time: 70
So i checked and long story short, i already have version 5.2.5 of
firmware but my "DTMF TX Strict Hold Off time" was set to 40. So i set
it to 80 (not 70) ms to make sure i don't get beeps anymore. With
small amount of testing it is looking good. Will report back if beeps
come back and what else i have tried.
Peace,
Dan
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