[OpenSIPS-Users] Modify the headers after executing a MI function in B2B_LOGIC module

Wed Aug 24 15:50:46 UTC 2022

Hi Bogdan,

Thanks for the explanation. I mean that the local_route can take effect for the forwarded INVITE(from incoming ones) in our proxy, but not after b2b_bridge. I'll do more debugging on it since the messages should be visible. Thank you very much.

Thanks,
Li

From: Bogdan-Andrei Iancu <bogdan at opensips.org>
Sent: August 24, 2022 10:33 AM
To: Li Cai <Li.Cai at comtech.com>; OpenSIPS users mailling list <users at lists.opensips.org>
Subject: Re: [OpenSIPS-Users] Modify the headers after executing a MI function in B2B_LOGIC module

WARNING: External Email: Exercise Caution

Hi Li,

All SIP requests generated by `b2b_bridge` are to be visible in local_route. And on the contrary, the incoming (received) requests DO NOT trigger local route.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

  https://www.opensips-solutions.com<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.opensips-solutions.com%2F&data=05%7C01%7CLi.Cai%40comtech.com%7C3cfc94bd30494557971708da85dd8120%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637969483655810006%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Alp8ey%2Frlw%2BagiLIsIphXz51eF74enunVGtuvY3veHA%3D&reserved=0>

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On 8/24/22 4:34 PM, Li Cai wrote:
Hi Bogdan,

Yes, we have put the changes by calling remove_hf() and append_hf() in the 'local_route', those functions for new incoming INVITE but not the INVITE sent out by 'b2b_bridge'.

Thanks,
Li

From: Bogdan-Andrei Iancu <bogdan at opensips.org><mailto:bogdan at opensips.org>
Sent: August 24, 2022 7:18 AM
To: OpenSIPS users mailling list <users at lists.opensips.org><mailto:users at lists.opensips.org>; Li Cai <Li.Cai at comtech.com><mailto:Li.Cai at comtech.com>
Subject: Re: [OpenSIPS-Users] Modify the headers after executing a MI function in B2B_LOGIC module

WARNING: External Email: Exercise Caution

Hi Li,

Have you tried to use the local_route in order to do custom changes on the outgoing requests generated by the B2B bridging ?

Best regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

  https://www.opensips-solutions.com<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.opensips-solutions.com%2F&data=05%7C01%7CLi.Cai%40comtech.com%7C3cfc94bd30494557971708da85dd8120%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637969483655810006%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Alp8ey%2Frlw%2BagiLIsIphXz51eF74enunVGtuvY3veHA%3D&reserved=0>

OpenSIPS Summit 27-30 Sept 2022, Athens

  https://www.opensips.org/events/Summit-2022Athens/<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.opensips.org%2Fevents%2FSummit-2022Athens%2F&data=05%7C01%7CLi.Cai%40comtech.com%7C3cfc94bd30494557971708da85dd8120%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637969483655810006%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ECg5RaeWv7nyMoFz2sTaFdQU%2BqzGA3wBaCGzbUfmygo%3D&reserved=0>
On 8/23/22 10:34 PM, Li Cai wrote:
Hi,

I'm working on a change for a B2BUA based on OpenSIPs 2.4, but not sure if the function is supported or if it has been supported in the later versions.

We have used the MI command b2b_bridge to bridge existing calls from one entity to another and it works, the scenario is the same as expected. While besides this, we also need to modify one of the headers of the INVITEs sending to the new destination in this scenario,  our scripts in the opensips.cfg can't take any effect.

Thanks,
Li
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