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Unread 09-09-2008, 03:01 PM   #1
ineagu
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Default SIPbroker w. Asterisk DTMF not working

I m calling into my asterisk server (into a conference for example) thru SIP broker PSTN gateway and the call reaches fine but the DTMF are not sent...
any ideas ?
thank you
ilie neagu

Last edited by ineagu; 12-09-2010 at 07:28 PM.
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Unread 11-23-2008, 11:59 AM   #2
vk4akp
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I have had the same problem on and off for weeks. It's the gateways. There not working properly. They are also dropping the calls out after the first few seconds.
.-.-.

Last edited by vk4akp; 12-11-2008 at 02:40 PM.
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Unread 12-11-2008, 02:44 PM   #3
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Unhappy Any fix for no DTMF via SipBroker PSTN Gateway?

Hi, Can anyone help with this? Is there a fix to get the DTMF working from a SipBroker PSTN Gateway to an Asterisk box?

It used to work fine. Whats changed in the last month or so?

I've tried all sorts of changes to sip.conf but nothing works.

Help please Sipbroker. We need DTMF for the users to select options in our menu's.
.-.-.
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Unread 12-11-2008, 03:36 PM   #4
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Unhappy G.729 works but is random

I've done some more experimenting tonight.

I've noticed that in about 1 in every 4-5 calls Sipbroker negotiates a G.729 call with my Asterisk box. At this point the DTMF signaling works fine.

Every other call is uLaw and DTMF fails with this every time.

I have tried every possible setting for DTMF.

dtmfmode = rfc2833 ; The default setting
dtmfmode = inband
dtmfmode = info
dtmfmode = auto
relaxdtmf = yes

None of these made any difference.

I can only conclude that it's a problem at the SipBroker end?

Can someone give me some idea of whats going on? Or if it is a problem with Sipbroker so I can stop trying to fix it my end and just wait?

Any help appreciated.
.-.-.
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Unread 12-12-2008, 04:57 AM   #5
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Curious, have you tried an alterante access number...
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Unread 12-12-2008, 05:34 AM   #6
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Unhappy Alternate number and other idea's.

Hi, Thanks for getting back to me.

OK. The plot thickens!!! I just tried the Sydney gateway and it failed to pass DTMF also. But I tried a USA Sipbroker gateway and it worked!

I also note that if I call a Asterisk system in the USA that I am involved with from the Brisbane gateway the DTMF works. Yet his system and mine both share the same settings in sip.conf .

The strange thing is that DTMF always used to work and then all of a sudden stopped working. As there had been no changes here I could only assume the problem was elsewhere. (Although I know better never to deal in absolutes when it comes to computers).

Now here's another interesting test. I had friends dial into my box using SIP and also using a USA Gateway I have for the box (IPKall) and that all worked fine also. If I dial out from my ata using VoXaLot and loop back into the Asterisk box once again it works fine.

All very strange. (And annoying) hehe.

The problem seems to only exist from a AU Sipbroker gateway to a AU Asterisk Box. Go figure !! ??? ¿¿¿ :|
.-.-.
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Unread 01-16-2009, 01:52 PM   #7
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Unhappy Sipbroker test numbers

Here's some numbers for you guys to do some testing with from the .AU gateways.

*061 742 926 (My asterisk system [ in Queensland .AU] )

You will find the DTMF fails.

*8313 00 (Telephreak USA)

You will find the call drops out after a few seconds every call.

This problem has now existed several months.

.-.-.
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Unread 01-27-2009, 03:27 PM   #8
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Unhappy Action need please! PLease reply...

Bump... Bump... Bump...

Hi Guys, can we get some sort of feedback on this problem please?

It is now a very long term issue we need to solve.

Also when dialing the USA system now through the .AU sipbroker gateways the call drops and the channel is hung every time after the first few seconds.

There is obviously an issue with the .AU only Sipbroker gateways.

Can we get some feedback, idea's anything please.

I am more then happy to test any settings you suggest.

Or if this is a known issue with Sipbroker .AU gateways can we at least please get some info.

TNX
~Ken
.-.-.
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Unread 06-09-2009, 05:17 AM   #9
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any action would be nice.... a response maybe?
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Unread 06-10-2009, 06:20 PM   #10
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I think it is asterisk 1.4 and earlier that has DTMF RFC2833 issues. You can google this to check it


Also you make no mention of the asterisk configuration, whether on a public IP or behind a NAT, as I have seen firewalls , NATs, routers that seem to hinder DTMF (I can not explain WHY)
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