DTMF problem

I've been using a Fritzbox in conjunction with JustVoip for 4 years now
but suddenly have a problem with DTMF tones not being recognised when
I'm offered menu options on the number I've dialled.

Ideas please.

Malcolm

On Wed, 14 Mar 2012 20:13:40 +0000, Malcolm Loades <devnull@loades.eu>
wrote:

>I've been using a Fritzbox in conjunction with JustVoip for 4 years now
>but suddenly have a problem with DTMF tones not being recognised when
>I'm offered menu options on the number I've dialled.
>
>Ideas please.
>
>Malcolm

Try setting the DTMF mode on the Fritz! to INBAND

--
Graham.
%Profound_observation%

In message <7102m79kpq0qn5ehgbhcapuachnjitqcs8@4ax.com>, Graham.
<me@privacy.net> writes
>On Wed, 14 Mar 2012 20:13:40 +0000, Malcolm Loades <devnull@loades.eu>
>wrote:
>
>>I've been using a Fritzbox in conjunction with JustVoip for 4 years now
>>but suddenly have a problem with DTMF tones not being recognised when
>>I'm offered menu options on the number I've dialled.
>>
>>Ideas please.
>>
>>Malcolm
>
>Try setting the DTMF mode on the Fritz! to INBAND
>
A google done before posting suggested this but I can't find anywhere in
the Fritzbox settings to do this. Is it possible to do this with a
Fritzbox?

Malcolm

On 14/03/2012 20:13, Malcolm Loades wrote:
> I've been using a Fritzbox in conjunction with JustVoip for 4 years now
> but suddenly have a problem with DTMF tones not being recognised when
> I'm offered menu options on the number I've dialled.
>
> Ideas please.
>
> Malcol
On your fritzbox edit the internet telephone number and change the DTMF
transmission to in-band . If that doesnt work try the other options in
the list.

On 14/03/2012 20:44, Malcolm Loades wrote:
> In message <7102m79kpq0qn5ehgbhcapuachnjitqcs8@4ax.com>, Graham.
> <me@privacy.net> writes
>> On Wed, 14 Mar 2012 20:13:40 +0000, Malcolm Loades <devnull@loades.eu>
>> wrote:
>>
>>> I've been using a Fritzbox in conjunction with JustVoip for 4 years now
>>> but suddenly have a problem with DTMF tones not being recognised when
>>> I'm offered menu options on the number I've dialled.
>>>
>>> Ideas please.
>>>
>>> Malcolm
>>
>> Try setting the DTMF mode on the Fritz! to INBAND
>>
> A google done before posting suggested this but I can't find anywhere in
> the Fritzbox settings to do this. Is it possible to do this with a
> Fritzbox?
>
> Malcolm
on my 7170 its

Settings -> Telephony -> Internet Telephony

then click on the edit icon (pencil and paper) next to the line you want
to change the settings on

In message <Aq78r.164903$as3.111163@newsfe27.ams2>, Roger
<roger_barrett@yahoo.com> writes
>On 14/03/2012 20:13, Malcolm Loades wrote:
>> I've been using a Fritzbox in conjunction with JustVoip for 4 years now
>> but suddenly have a problem with DTMF tones not being recognised when
>> I'm offered menu options on the number I've dialled.
>>
>> Ideas please.
>>
>> Malcol
>On your fritzbox edit the internet telephone number and change the DTMF
>transmission to in-band . If that doesnt work try the other options in
>the list.
>
There is no such option on the edit internet telephone number. See
www.http://loades.net/fritz.jpg

I'm not sure which Fritzbox model I have. The label on the bottom of it
doesn't give a 7170 type model number - it says AVM02046. I bought it
from Sipgate in the UK about 5 years ago, it is wireless with a single
antenna, 2 analogue phone ports and 1 network cable port - no ISDN. The
Overview screen is headed "FRITZ!Box Fon WLAN Annex A, Firmware version
08.04.26".

Malcolm

In message <gCacpuB$hYYPFwiY@news.posting>, Malcolm Loades
<devnull@loades.eu> writes
>In message <Aq78r.164903$as3.111163@newsfe27.ams2>, Roger
><roger_barrett@yahoo.com> writes
>>On 14/03/2012 20:13, Malcolm Loades wrote:
>>> I've been using a Fritzbox in conjunction with JustVoip for 4 years now
>>> but suddenly have a problem with DTMF tones not being recognised when
>>> I'm offered menu options on the number I've dialled.
>>>
>>> Ideas please.
>>>
>>> Malcol
>>On your fritzbox edit the internet telephone number and change the
>>DTMF transmission to in-band . If that doesnt work try the other
>>options in the list.
>>
>There is no such option on the edit internet telephone number. See
>www.http://loades.net/fritz.jpg

Ooops! That should read www.loades.net/fritz.jpg

>I'm not sure which Fritzbox model I have. The label on the bottom of
>it doesn't give a 7170 type model number - it says AVM02046. I bought
>it from Sipgate in the UK about 5 years ago, it is wireless with a
>single antenna, 2 analogue phone ports and 1 network cable port - no
>ISDN. The Overview screen is headed "FRITZ!Box Fon WLAN Annex A,
>Firmware version 08.04.26".

But I've now solved the problem!

I suddenly remembered that in one of my occasional bouts of rate
checking and updating of dialling rules (if something is cheaper from
another provider) Sipgate were some parts of a penny cheaper for 0845
calls. So I changed the dialling rule for 0845 calls to go through
Sipgate rather than JustVoip which I'd been using for 4+ years. I
experimented with a switch back to JustVoip and DTMF tones are now
recognised in menu options!

Can anyone think why Sipgate should handle DTMF tones differently to
JustVoip?

Malcolm

On Thu, 2012-03-15 at 16:26 +0000, Malcolm Loades wrote:
> Can anyone think why Sipgate should handle DTMF tones differently to
> JustVoip?

One issue I had with AQL was that they asked for DTMF info in a
different payload type to the one that the SIP client requested — so it
was asymmetric. My Gigaset C475IP was broken and didn't cope with this;
it sent the DTMF with the payload type that it expected to *receive* it
in, not the type is should have been *sending* it with.

A packet capture of the traffic between you and Sipgate would probably
give a clue whether it's a similar problem, or something else.

(Siemens never did offer an updated firmware for the C475. After months
of chasing them, they did eventually replace it with an N300IP which
means I no longer have a 'mute' button on the handsets, annoyingly. I
hate closed-source crap that I can't fix.)

Inband might work if you have a good network, but sending DTMF
out-of-band is generally much more reliable — which is why it was
designed to work that way.