[AusNOG] Cisco SPA - Fax in Australia

[Jake Anderson]

see if you can manually set the baud rate to something low (9600bps say)
and turn off any of the fancy bits and pieces that some of the later fax 
protocols have.

see what kind of latency and jitter you have to your provider.

oh god baud rates, pingy screetching noises the memories are returning.


On 23/04/14 10:55, Joseph Goldman wrote:
> Thanks for all the pointers - unfortunately I still couldn't get it to 
> work :( I have been able to get it to recognise a fax on either end 
> and start communication but it always fails with a comm error :(
>
> On 22/04/14 22:19, dean at faktortel.com.au wrote:
>> Hi Joe
>>
>> You can try these settings.
>> I use these settings for pap2t and spa3102....etc. should be similar to
>> spa122. if i dont have a t.38 gateway
>>
>> 3 Way Calling: no
>> Echo Canceller: no
>> Silence Suppression Enable: no
>> Call Waiting: no
>> FAX Disable ECAN: NO.
>> FAX CED Detect Enable: YES
>> FAX Enable T38: NO
>> FAX T38 Redundancy: 0
>> FAX Tone Detect Mode: Caller or Callee
>> Network Jitter: Very High
>> Jitter Buffer Adjustment: Disable
>> Preferred Codec: alaw
>> Fax Passthru Method: reinvite
>>
>> These 2 make a big difference for me..
>>
>> RTP Packet Size to 0.010
>> FXS port impedance to 220+820|| 120NF
>>
>>
>>
>>
>> Regards
>> Dean
>> faktortel
>>
>>
>>
>> -----Original Message-----
>> From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of 
>> Joseph
>> Goldman
>> Sent: Tuesday, 22 April 2014 1:32 PM
>> To: AusNOG at lists.ausnog.net
>> Subject: [AusNOG] Cisco SPA - Fax in Australia
>>
>> Hi list,
>>
>>    Trying to have some luck using faxes behind Cisco SPA ATA's, in 
>> particular
>> testing with an SPA122. I can get the unit to detect its a fax coming
>> through, but often they don't begin communication between the
>> 2 endpoints, or if by luck they do I get a comm error.
>>
>>    T.38 is enabled, NSE enabled, also tried with no NSE enabled.
>>
>>    Anyone had luck getting these units to work in AU ?
>>
>> Thanks,
>> Joe
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>> AusNOG at lists.ausnog.net
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>
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