[asterisk-users] how to set iaxmodem receiving speed

[gincantalupo]

Hi Larry,

thank you for your answer.

This is same test I did. After this I lowered again to 4800...result: 
iaxmodem receives at 9600 b/s.....that's why I cannot solve the puzzle.

I put that line (Class1RMQueryCmd:       "!24,48,72") in config.IAXtty 
and tried other configuration files too but I always get faxes at 9600.

Thank you

Giorgio

On 05/16/2012 03:59 PM, Larry Moore wrote:
> Read the subject line more closely.
>
> Tested receiving too,
>
> I set the Send & Receive speed of the receiving analogue modem to that 
> below, the log file on the sending modem (iaxmodem) reported it 
> capable of 9600.
>
> May 16 21:32:04.28: [ 2335]: REMOTE best rate 9600 bit/s
> May 16 21:32:04.28: [ 2335]: REMOTE max A3 page width (303 mm)
> May 16 21:32:04.28: [ 2335]: REMOTE max unlimited page length
> May 16 21:32:04.28: [ 2335]: REMOTE best vres R16 x 15.4 line/mm
> May 16 21:32:04.28: [ 2335]: REMOTE format support: MH, MR, MMR
> May 16 21:32:04.28: [ 2335]: REMOTE supports T.30 Annex A, 256-byte ECM
> May 16 21:32:04.28: [ 2335]: REMOTE best 0 ms/scanline
> May 16 21:32:04.28: [ 2335]: USE 9600 bit/s
>
> Perhaps the issue is with Hylafax.
>
> Setting the Transmit & Receive strings to "!24,48,72,96" seems to 
> yield the most reliability in transmission
>
> Cheers,
>
> Larry.
>
> On 16/05/2012 7:23 PM, Larry Moore wrote:
>> I have iaxmodem version 1.2.0 installed on my system.
>>
>> I have set the following in the IAX configuration file, SIGHUP'd 
>> FaxGetty and submitted a single page outbound fax via Asterisk;
>>
>> Class1RMQueryCmd:       "!24,48,72"     # enable this to disable V.17 
>> receiving
>> Class1TMQueryCmd:       "!24,48,72"     # enable this to disable V.17 
>> sending
>>
>> The resulting output from my T.38 Gateway reports the following;
>>
>>     -- Connection Statistics
>>         Bit Rate :7200
>>         ECM : No
>>         Pages : 1
>>     -- Hungup 'IAX2/iaxmodem0-11055'
>>
>> I also tested with the maximum speed set to 4800, the image was 
>> received however the responses to EOP timed out, I don't know if the 
>> is to do with my Asterisk T.38 gateway or my VoIP providers T.38 
>> gateway. The result was the fax was retried for the defined number of 
>> attempts.
>>
>> Cheers,
>>
>> Larry.
>>
>> On 16/05/2012 6:28 PM, gincantalupo wrote:
>>> Hi all,
>>>
>>> I'm trying to lower my iaxmodem speed but still I haven't found any solution...I tried to add
>>> Class1RMQueryCmd:       "!24,48,72"
>>> to config.IAXtty but does not work...Hylafax says it it running at 9600 (sometimes at 14400) baud..
>>>
>>> Any ideas?
>>>
>>> Thank you.
>>>
>>> Giorgio
>>>
>>>
>>> --
>>> _____________________________________________________________________
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>>
>>
>> --
>> _____________________________________________________________________
>> -- Bandwidth and Colocation Provided byhttp://www.api-digital.com  --
>> New to Asterisk? Join us for a live introductory webinar every Thurs:
>>                 http://www.asterisk.org/hello
>>
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>
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>                 http://www.asterisk.org/hello
>
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