[OpenSIPS-Users] ACK bug help needed

[Brian Southworth]

Hi Razvan,

 
I Have sent you the pcap file link to your personal email.

Asterisk cuts the calls because it is missing a critical packet ACK from what I can see replying to the 200ok it sent to opensips.

But opensips only sends the ACK packet to itself and nowhere else, the call has audio and is active for 33 seconds until the call is cut. Due to a no reply to critical packet 101.

 
The system works by using opensips as a proxy open sips then sets the dst uri and the call is then t_relay() on to asterisk gateway.

Yeah I can confirm I am doing Record_route();

 
Regards,

 
Brian Southworth

Communications Developer


111 Wilmslow Road

Handforth

Wilmslow

SK9 3ER

 
T: 03333 446677

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From: Users [mailto:users-bounces at lists.opensips.org] On Behalf Of Razvan Crainea
Sent: 05 September 2017 10:57
To: users at lists.opensips.org
Subject: Re: [OpenSIPS-Users] ACK bug help needed

 
Hi, Brian!

OpenSIPS doesn't need to send an ACK back, it has to relay the 200 OK to the caller, and the caller will send the ACK back. Can you confirm you are doing record_route() on the initial INVITE?
Also, can you post somewhere a SIP trace/pcap?

Best regards,



Răzvan Crainea


OpenSIPS Developer


www.opensips-solutions.com <http://www.opensips-solutions.com> 

On 09/05/2017 12:44 PM, Brian Southworth wrote:

Hi All,

 
I seem to be having issues with outbound calls, the calls go out and the connection is established.

But when the asterisk gateway send the 200OK back from the provider to opensips proxy, the proxy doesn’t send the ACK packet back to asterisk it just keeps looping it to itself.

 
Any help would be appreciated. 

 
Regards,

 
Brian Southworth

Communications Developer


111 Wilmslow Road

Handforth

Wilmslow

SK9 3ER

 
T: 03333 446677

W: www.clocom.uk <http://www.clocom.uk/> 

 
	 

	 

	 

	 

 <http://www.facebook.com/clocom.uk> 

	Like us on Facebook

	

	Follow us on Twitter

	

 
	 

	 

	 

	 

Clocom is a green company. Think, do you need to print this email?

 
This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message, which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. Clocom UK Ltd, 111 Wilmslow Road, Handforth, Cheshire, SK9 3ER www.clocom.uk <http://www.clocom.uk/> 

 
 





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