Re: [hylafax-users] Ring detected without successful handshake

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Tim Paulus wrote:

> Sep 14 13:10:24.47: [12703]: <-- [4:ATA\r]
> Sep 14 13:10:38.15: [12703]: --> [7:CONNECT]
> Sep 14 13:10:38.15: [12703]: <-- HDLC<32:FF C0 04 AD 00 55 12 9E 36 86 62 82 1A 04 14 2E B6 94 04 6A A6 4E CE 96 F6 76 04 2C 74 4C 74 8C>
> Sep 14 13:10:38.15: [12703]: --> [7:CONNECT]
> Sep 14 13:10:38.15: [12703]: <-- HDLC<23:FF C0 02 EC 04 9E B6 A6 26 86 C6 82 04 9E C6 86 E6 A6 32 04 04 04 04>
> Sep 14 13:10:38.16: [12703]: --> [7:CONNECT]
> Sep 14 13:10:38.16: [12703]: <-- HDLC<10:FF C8 01 04 76 5F 23 01 FB C0>
> Sep 14 13:10:40.35: [12703]: --> [2:OK]
>  

That's HylaFAX sending NSF, CSI, and DIS signals.

> Sep 14 13:10:40.35: [12703]: <-- [9:AT+FRH=3\r]
> Sep 14 13:10:40.37: [12703]: --> [7:CONNECT]
> Sep 14 13:10:41.01: [12703]: --> HDLC<16:FF C0 04 00 00 6A AA AA 00 31 09 01 48 D0 13 2C>
> Sep 14 13:10:41.01: [12703]: --> [2:OK]
>  

This is the sender transmitting NSF... and that's a no-no.  The caller 
should not send NSF.  It could send NSS, but I've never seen a caller do 
that to a HylaFAX receiver.  In any case, this caller is identifying its 
equipment this way as a Brother fax machine.  And, truthfully, this 
should not interfere with our receive process if this is the only no-no 
that the sender does.

> Sep 14 13:10:41.01: [12703]: <-- [9:AT+FRH=3\r]
> Sep 14 13:10:41.02: [12703]: --> [7:CONNECT]
> Sep 14 13:10:41.71: [12703]: --> HDLC<25:FF C0 02 EC EC 0C CC EC 0C 2C 1C EC 6C 8C 04 04 04 04 04 04 04 04 04 3A 40>
> Sep 14 13:10:41.71: [12703]: --> [2:OK]
>  

This is the sender transmitting CSI.  Again, this is a no-no.  It should 
send TSI instead.  Again, this will not be fatal in an of itself, however.

> Sep 14 13:10:41.71: [12703]: <-- [9:AT+FRH=3\r]
> Sep 14 13:10:41.72: [12703]: --> [7:CONNECT]
> Sep 14 13:10:42.14: [12703]: --> HDLC<15:FF C8 01 04 77 1D 23 01 89 01 01 19 00 2B 8F>
> Sep 14 13:10:42.14: [12703]: --> [2:OK]
>  

This is the sender transmitting DIS.  Again, this is a no-no, and as it 
is the last frame in this HDLC series, this will be fatal if the sender 
continues to behave like this.

And the sender did continue that same line of thought, and that's why 
the session fails.

The sender is calling but then is trying to receive a fax.  The sender's 
fax machine is broken.  Can they send faxes to anyone else?

Lee.


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