[AusNOG] Cisco SPA - Fax in Australia

Joseph Goldman joe at apcs.com.au
Wed Apr 23 10:55:17 EST 2014


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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