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Michael Ruffin

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Hi, our ISP provides T.38 for faxing, but you have to dial a specific dial code to access it, namely *38#<number to dial>.

When I try to dial this using Kerio Operator, it fails. Is there something I need to add into the dialplan to get this to work?
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Filip Jenicek (Kerio)

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Hi,

are you sure that it fails with Operator and not with the end device? Most phones treat the '#' sign as a command to dial.

First of all I would try to figure out if Operator received the full number "*38#<number to dial>" (either from packet dump or debug log).

Filip
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Michael Ruffin

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Just grabbed a packet trace from Kerio:

13 11.315070 192.168.100.110 192.168.100.90 SIP/SDP 1144 Request: INVITE sip:*38%2363437572<_at_>192.168.100.90 |
14 11.316280 192.168.100.90 192.168.100.110 SIP 616 Status: 401 Unauthorized |

Does that help?
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Filip Jenicek (Kerio)

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It looks like the '#' was converted to '%2' by the device. What device is it?
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Michael Ruffin

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It's a Digium D70, but just also tried it on a Polycom (321 I believe) and it gave the same result:

1 0.000000 192.168.100.133 192.168.100.90 SIP/SDP 963 Request: INVITE sip:*38%2363437572<_at_>192.168.100.90:5060 |
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Michael Ruffin

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Actually looks like it's converting it to %23, which is the HTML URL encoding code for #. I can confirm it's actually in the packet like that as well, and it's not the forum (or something else) changing the text.
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Filip Jenicek (Kerio)

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The conversion seems correct. Could you create a full packet dump inc. communication with the sip provider and email it to me fjenicek<_at_>kerio.com.
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Michael Ruffin

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It doesn't look like it gets out of Kerio Operator at all. (I just get a busy signal from the phone with "Failed"). I don't see anything in the packet capture that even shows the ISP being contacted.

Have sent you a packet capture via email.
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Filip Jenicek (Kerio)

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We have solved it via email.

A route with an empty prefix doesn't route numbers starting with an asterisk. To overcome it, one has to create an extra route with an asterisk prefix.
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