Hi Daniel,

Thanks for the suggestion. I was able to fix it by enabling `append_fromtag` - it's disabled in the example config, although it is on by default.

modparam("rr", "append_fromtag", 1)

Thanks Matthew

On Thu, Mar 24, 2022 at 12:59 PM Daniel-Constantin Mierla miconda@gmail.com wrote:

Hello,

check if the call-id value is not somehow changed by the endpoints, then also direction has to be detected properly (check from/to/rr tags).

Cheers, Daniel On 23.03.22 16:05, Marrold wrote:

Hi,

I have enabled the TOPOH module with mask_callid enabled, but it's generating a new Call-ID for a BYE which gets rejected with a 481 downstream. If I disable the TOPOH module it works as expected.

Does anyone know where I should start looking? SIP-wise the initial BYE seems compliant.

This is Kamailio 5.5.3 on Debian 11

Thanks Matthew

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