[asterisk-users] Fwd: Re: Asterisk T.38 Pass-Through doesn't work

[Zoltán Fekete]

Thank You Larry!

I have discussed with my provider. They are not able to insert the
T38MaxBitRate value into the sip answer. :(
https://gist.github.com/anonymous/6120148 (line 559)

That means we are not able to passtrough T38 Faxes with any asterisk
version at all?
What do you mean? Am I able to modify and compile the source? Is it
compicated? (I'm not a developer)

Regards,
Blaxy


2013/7/23 Larry Moore <lmoore at omninet.net.au>

> On 23/07/2013 6:18 AM, Kevin Larsen wrote:
>
>> The a=T38MaxBitRate issue you refer to was one that was actually
>> discovered at my company and submitted by a colleague. It was fixed in
>> 11.3.0 and 1.8.21.0. However, I think that it wouldn't help based on the
>> description below being that the parameter was missing altogether. I
>> think if that parameter is missing, then the code would in fact default
>> to 2400 as a safe value.
>>
>>
> The Case Insensitive checking of the T.38 attributes was introduced in
> these versions.
>
> Looking at the ITU-T T.38 Implementors' Guide (11 May 2012)in Table H.2,
> if the T38MaxBitRate attribute is omitted they suggest using the default
> value, they indicate a default value of 14400.
>
> Larry.
>
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