Re: I can receive but I cannot send any faxes (Failure to train remote modem at 2400 bps or minimum speed )

The servers are similar, but not identical:

asterisk server: debian wheezy, hylafax binary install 6.0.5-4.1
hylafax server2: ubuntu server 14.04, hylafax+ source install

The network seems not have any latency issues:

hylafaxclient# iperf -c 10.1.0.1 -i 1 -t 60
------------------------------------------------------------
Client connecting to 10.1.0.1, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  3] local 10.1.0.246 port 40417 connected with 10.1.0.1 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0- 1.0 sec  69.0 MBytes   579 Mbits/sec
[  3]  1.0- 2.0 sec  68.1 MBytes   571 Mbits/sec
[  3]  2.0- 3.0 sec  68.0 MBytes   570 Mbits/sec
[  3]  3.0- 4.0 sec  67.9 MBytes   569 Mbits/sec
[  3]  4.0- 5.0 sec  68.0 MBytes   570 Mbits/sec
[  3]  5.0- 6.0 sec  68.1 MBytes   571 Mbits/sec
[  3]  6.0- 7.0 sec  68.8 MBytes   577 Mbits/sec
[  3]  7.0- 8.0 sec  68.4 MBytes   574 Mbits/sec
[  3]  8.0- 9.0 sec  68.5 MBytes   575 Mbits/sec
[  3]  9.0-10.0 sec  68.5 MBytes   575 Mbits/sec
[  3] 10.0-11.0 sec  68.4 MBytes   574 Mbits/sec
[  3] 11.0-12.0 sec  68.2 MBytes   573 Mbits/sec
[  3] 12.0-13.0 sec  67.5 MBytes   566 Mbits/sec
[  3] 13.0-14.0 sec  68.2 MBytes   573 Mbits/sec
[  3] 14.0-15.0 sec  67.2 MBytes   564 Mbits/sec
[  3] 15.0-16.0 sec  67.8 MBytes   568 Mbits/sec
[  3] 16.0-17.0 sec  68.5 MBytes   575 Mbits/sec
[  3] 17.0-18.0 sec  68.1 MBytes   571 Mbits/sec
[  3] 18.0-19.0 sec  68.6 MBytes   576 Mbits/sec
[  3] 19.0-20.0 sec  68.0 MBytes   570 Mbits/sec
[  3] 20.0-21.0 sec  68.8 MBytes   577 Mbits/sec
[  3] 21.0-22.0 sec  68.6 MBytes   576 Mbits/sec
[  3] 22.0-23.0 sec  67.9 MBytes   569 Mbits/sec
[  3] 23.0-24.0 sec  68.6 MBytes   576 Mbits/sec
[  3] 24.0-25.0 sec  68.6 MBytes   576 Mbits/sec
[  3] 25.0-26.0 sec  68.2 MBytes   573 Mbits/sec
^C[  3]  0.0-26.1 sec  1.74 GBytes   572 Mbits/sec

2015-11-11 22:48 GMT+01:00 Lee Howard <[email protected]>:

> On 11/11/2015 01:27 PM, Mona Meyer wrote:
>
>> > So... even if you have a super-duper network that does not drop packets
>> between Asterisk and IAXmodem - how does the call go out from there?
>>
>> First of all: Thank you very much for your help!
>>
>> The 2 servers are connected on a local network (1000Mbps). The asterisk
>> server dials out with lcr/ISDN (http://isdn.eversberg.eu/howto.html)
>> .
>> There is a second hylafax-sever installed on the asterisk server (wheezy
>> binary install) that is working without any problems. That was the reason
>> why I thought I can rule out the asterisk server as source of the problem.
>>
>
> So, you have two HylaFAX servers, and both of them use iaxmodems.
>
> One of the servers connect to Asterisk via the loopback adapter on the
> Asterisk server.
>
> The other server connects to Asterisk via the LAN.
>
> There are no problems sending from the HylaFAX server which is also the
> Asterisk server.  However, there are problems sending from the HylaFAX
> server which communicates to Asterisk over the LAN.
>
> So, how, exactly, did you rule-out packet loss or latency on the LAN as
> being the problem?  Because, it seems to me that as long as everything else
> is identical between the two HylaFAX and iaxmodem sets that the LAN is the
> only other variable.
>
> Thanks,
>
> Lee.
>