[VoIP] Patches
John Novack
jnovack at stromberg-carlson.org
Sun Apr 1 20:36:10 CDT 2007
Russ Price wrote:
> ikjtel wrote:
>
>> Sometimes I can hear what sounds like a pause or
>> "burp" in what should be a regular rythm of pulses...
>>
>> Has anyone been able to isolate whether this is due to
>> :
>>
>> * improper make/break ratio
>> * version of asterisk and/or zaptel
>> * version of driver
>> * type of hardware in use (channel bank vs. x100p vs.
>> tdm400; brand of channel bank), etc.
>> * whether the "audible pulsing" patches have been
>> applied or not
>>
>
> FWIW, my TDM400P's pulsing is audibly better than that from the Adtran
> FXO. I don't hear any raggedness, and the make/break ratio sounds more
> appropriate on the TDM400P.
>
> This has been true with Zaptel 1.2.16 as well as 1.2.7, both with open
> audio path. I'm running Asterisk 1.2.17 here, with the open audio path.
>
> The channel bank is an Adtran 750, with a 1175407L2 quad FXO card, 5
> quad FXS cards, and a 1175012L1 BCU, and the T1 card is a Digium TE110P.
>
> I tried vanilla Zaptel 1.2.16 (no patches), and still got occasional
> misdials when pulse dialing into my Panasonic switch.
>
> I also tried both B8ZS and AMI coding, and D4 and ESF framing, and they
> made no difference.
>
> Russ
> CNET: 1-442-7877
> FWD: 699408
>
Ok, for you Adtran users:
What, if any difference is there between the configurations for an FXO
between DPT and FXO loop
Adtran offers both as options, but I am unclear if there is any difference.
Any Channel Bank EXPERTS?
John Novack
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