Hello,

looking in the code, the sdp_with_transport() does a strict/exact match on the transport part - the parameter of the function must be exact value in the sdp. The sdp_with_transport_like() does a fuzzy match - the parameter of the function must be part of the value in the sdp.

Therefore, if you want to test the presence of RTP/SAVPF, the sdp_with_transport_like() should be used.

Cheers,
Daniel

Hello,

I have also realized that weird weird behavior with sdp_with_transport method and started using sdp_with_transport_like("RTP/SAVPF") instead. 

sdp_with_transport("RTP/SAVPF") returns false for the following line: m=audio 56481 UDP/TLS/RTP/SAVPF 109 9 0 8

If anyone could clarify it, it would be perfect.

Cheers,
Serhat

On 31 January 2017 at 20:03, M. Salman <msalman212@gmail.com> wrote:

Hi Guys,

Just wanted to clarify the following case:

what should be result of sdp_with_transport("RTP/SAVPF") on line:

m=audio 10231 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 106 105 13 126

I am having a weird behavior for two different versions of Kamailio. I hope I am doing something wrong. 

kamailio 4.3.2 => sdp_with_transport("RTP/SAVPF") = true

kamailio 4.4.5 => sdp_with_transport("RTP/SAVPF") = false

--

Regards

M. Salman
VoIP Professional

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