Hi,

If an ACK is received, there is not way for is_method("invite") to let it pass.... I suggest using the script_trace() function, so you can understand the script execution.
https://www.opensips.org/Documentation/Script-CoreFunctions-3-2#script_trace

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  https://www.opensips-solutions.com
OpenSIPS Bootcamp 5-16 Dec 2022, online
  https://www.opensips.org/training/OpenSIPS_eBootcamp_2022/

On 11/15/22 11:21 PM, M S wrote:
Hi List,
If I use a block like:

if(is_method("invite") && !has_totags()) {
    if(xxxx) send_reply(402, "more money");
    ......
}

Then if an invite is received and xxxx is true, a 402 is sent, and then an ACK is received in response to 402, which has a to_tag too. This ACK strangely matches both method=invite and !has_totags... and therefore we (incorrectly) send another 402 in response to ACK. Is this normal behaviour? or is this happening because I'm doing something wrong like I need to send 100 Trying and then 402?

Thank you!

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