Re: [EXTERNAL] seting sdp bundle with rtpengine

On 30/10/2025 12.23, Samuel Moya Tinoco via sr-users wrote:
>
> Reading the rtpengine and kamailio docs I see that rtpengine shows 
> more options than kamailio rtpengine module.
>
The module docs are incomplete and inconsistent with what's actually 
supported by rtpengine somewhat by design, as the version of rtpengine 
used dictates which flags are supported, and the module is (mostly) 
agnostic about the specific flags.

Bundle support in particular is brand new and currently only supported 
by the trunk (beta) version of rtpengine. You should be able to see in 
the rtpengine log file if it supports it or not (it would print an 
"unknown flag" error or similar if it doesn't). If it does support it 
and bundle negotiation takes place, you should see log messages related 
to bundled media if you enable debug logging.

> In rtpengine options it shows bundle option but in kamailio it doesn’t 
> appear. And I’ve tried to set this option but it doesn’t work. 
> Kamailio recives the invite with bundle but when it sends the invite 
> to my asterisk the invite doesn’t have the bundle option enabled
>
If you want /outgoing/ offer (invite) SDPs to be bundled, you need to 
include `bundle=offer` (or, for WebRTC, `bundle=require`) in the list of 
flags.

Cheers

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