voip: sip application


I am trying to do a click to speak service in compliance with RFC 3515 using the SIP protocol.

In this scenario, I have to connect a telephone number A to a predefined telephone number B towards a web interface.

To do this, I use Asterisk server (version

I configured my dialplan like this (I'll show just what's interesting in it):


exten => _X.,1,Dial(SIP/${EXTEN}@mysipprovider,60,G(default^1^1)

;I use sipdiscount as SIP provider defined in [url removed, login to view]

exten => 1,1,Hangup()

exten => 1,2,Transfer(SIP/${NUMB}@mysipprovider)

;where NUMB is the predefined number to dial

Note that the G option in the first line of the context means that:

when the call is answered, the caller goes to the context default, extension 1 with priority 1;

the callee goes to the context default, extension 1 with priority 2.

I tested this with a softphone named twinkle.

Dialing the telephone number A from twinkle, Asterisk connects the two numbers, that is, number A and twinkle.

When the call is setup, twinkle hangups and, in the same time, I see a REFER message send to number A from my sipdiscount account with the Header field Refer-To: Number B.

Unfortunately, my sip provider, that is, [url removed, login to view] , does not allow this method and so it returns to me a message 405 "Method Not Allowed".

I have tried to use another sip carrier, like [url removed, login to view], but it also does not accept REFER method.

do u know a voip provider that permit me to use "refer"?


do u know how solve this problem?

if so, give me your quote.


Habilidades: Serviços de audio, Engenharia, Python, Administrador do Sistema, Wireless

Veja mais: web application quote, voip web server, g.c. services, b&c compliance, fun sip application, what application, voip, voip server, twinkle, softphone, sip softphone, sip server, sip provider, sip dial, rfc, context , compliance call, audio voip, audio service, asterisk voip, audio python, telephone application, connect time server, message asterisk, python web application

Acerca do Empregador:
( 0 comentários ) bari, Italy

ID do Projeto: #130058

4 freelancers estão ofertando em média $300 para esse trabalho


Hi , Your experiment looks very intresting. If you are willing we can both work together to sort out. I m not interested in money. I know few providers , but still needs to be tested . Please advise . Regards, Mais

$300 USD in 10 dias
(3 Comentários)

Hi,sir, What is the probel for my debugging your issues i am trying your problem till now i will reach you soon wiht solution. Thanks, saravanan.s

$300 USD in 5 dias
(0 Comentários)

Please check PMB.

$300 USD in 15 dias
(0 Comentários)

Check my PMB.

$300 USD in 0 dias
(0 Comentários)