Intermittent call dropping issue

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Intermittent call dropping issue

Stuart Mills, Invosys

Hi,

 

I’m currently experiencing an issue when using OpenSIPS and FreeSWITCH within the same network.

 

Calls arrive at the OpenSIPS border, then I use the dispatcher module to send to one of 3 FreeSWITCH instances.

 

On a bad call it seems like 200OK is being sent back from FreeSWITCH on calls that will drop, it tries time and time again until giving up after 30 seconds, but OpenSIPS isn’t responding with the ACK. The IP addresses in the trace I’ve got look good, all internal NAT addresses so I’m not sure how it could be missing this packet.

 

Have any one experienced this using a similar setup? I can post the opensips.cfg file if necessary.

 

Regards,

 

Stuart Mills

Senior Network Engineer

 

Invosys Ltd.

 

Direct.    0161 444 7403

Web.       www.invosys.com


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DISCLAIMER: This e-mail and files transmitted with it are confidential and intended solely for the individual to whom they are addressed, and upon the basis that the recipient will conduct the appropriate virus checks. If you are not the addressee, you are not authorised to use the information or to place any reliance upon it, nor should you copy it or show it to anyone. Internet communications are not secure and Invosys Ltd are not responsible for the abuse by third parties, nor for any alteration or corruption in transmission, nor for any damage or loss caused by any virus or other defect. Registered and correspondence address: Invosys Ltd (5799390), New Bridgewater House, Mayfield Avenue, Worsley, Manchester, M28 3JF

 


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Re: Intermittent call dropping issue

Vlad Paiu
Hello,

OpenSIPS shouldn't respond with the ACk - that should originate from the caller side and OpenSIPS should relay it.
Please post the full SIP trace for your call.

Best Regards,
Vlad Paiu
OpenSIPS Developer
http://www.opensips-solutions.com 
On 20.03.2015 16:13, Stuart Mills, Invosys wrote:

Hi,

 

I’m currently experiencing an issue when using OpenSIPS and FreeSWITCH within the same network.

 

Calls arrive at the OpenSIPS border, then I use the dispatcher module to send to one of 3 FreeSWITCH instances.

 

On a bad call it seems like 200OK is being sent back from FreeSWITCH on calls that will drop, it tries time and time again until giving up after 30 seconds, but OpenSIPS isn’t responding with the ACK. The IP addresses in the trace I’ve got look good, all internal NAT addresses so I’m not sure how it could be missing this packet.

 

Have any one experienced this using a similar setup? I can post the opensips.cfg file if necessary.

 

Regards,

 

Stuart Mills

Senior Network Engineer

 

Invosys Ltd.

 

Direct.    0161 444 7403

Web.       www.invosys.com


cid:862D2963-B682-4FBA-A237-D1F118B1E624

DISCLAIMER: This e-mail and files transmitted with it are confidential and intended solely for the individual to whom they are addressed, and upon the basis that the recipient will conduct the appropriate virus checks. If you are not the addressee, you are not authorised to use the information or to place any reliance upon it, nor should you copy it or show it to anyone. Internet communications are not secure and Invosys Ltd are not responsible for the abuse by third parties, nor for any alteration or corruption in transmission, nor for any damage or loss caused by any virus or other defect. Registered and correspondence address: Invosys Ltd (5799390), New Bridgewater House, Mayfield Avenue, Worsley, Manchester, M28 3JF

 



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Re: Intermittent call dropping issue

bhavik-patel
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In reply to this post by Stuart Mills, Invosys
Hi,

I am having same kind of issue and call is not drooping if call drop by station side and also call drop after 30 sec.

Did you able to fix this issue ?