I get this error message each time I try to "make a phone
call" to a SIP number. This happens in WinMess 4.7 as well
as 5.0. After some investigation I found out that this
will only happen when behind a firewall, using a SIP
proxy. Otherwise I have no problem dialing and making SIP
phone calls, including using DTMF for automated services
like VoiceMail.

Still, even behind the firewall I can make SIP phone calls
using "Start a voice conversation" instead of "make a
phone call". However, I loose the DTMF ability :-(

Greetings Yoav,

Do you happen to know which SIP Proxy it is?
____________________________________________
Jonathan Kay
Microsoft MVP - Windows Messenger/MSN Messenger
Associate Expert
http://www.microsoft.com/windowsxp/expertzone/
Messenger Resources - http://messenger.jonathankay.com


"Yoav" <(E-Mail Removed)> wrote in message
news:010801c3a6fe$359ea800$(E-Mail Removed)...
> I get this error message each time I try to "make a phone
> call" to a SIP number. This happens in WinMess 4.7 as well
> as 5.0. After some investigation I found out that this
> will only happen when behind a firewall, using a SIP
> proxy. Otherwise I have no problem dialing and making SIP
> phone calls, including using DTMF for automated services
> like VoiceMail.
>
> Still, even behind the firewall I can make SIP phone calls
> using "Start a voice conversation" instead of "make a
> phone call". However, I loose the DTMF ability :-(

Hello Jonathan,

I believe it is a Jasomi server on the FWD network
(fwdnat.pulver.com). Can you help? I also found out that I
cannot transfer DTMF via IM when behind the firewall to
edial.com conferencing server that would other accepts it
this way.
>-----Original Message-----
>Greetings Yoav,
>
>Do you happen to know which SIP Proxy it is?
>____________________________________________
>Jonathan Kay
>Microsoft MVP - Windows Messenger/MSN Messenger
>Associate Expert
>http://www.microsoft.com/windowsxp/expertzone/
>Messenger Resources - http://messenger.jonathankay.com
>
>
>"Yoav" <(E-Mail Removed)> wrote in
message
>news:010801c3a6fe$359ea800$(E-Mail Removed)...
>> I get this error message each time I try to "make a
phone
>> call" to a SIP number. This happens in WinMess 4.7 as
well
>> as 5.0. After some investigation I found out that this
>> will only happen when behind a firewall, using a SIP
>> proxy. Otherwise I have no problem dialing and making
SIP
>> phone calls, including using DTMF for automated services
>> like VoiceMail.
>>
>> Still, even behind the firewall I can make SIP phone
calls
>> using "Start a voice conversation" instead of "make a
>> phone call". However, I loose the DTMF ability :-(
>
>
>.
>