### Description Not shure is this relevant issue. according to rfc3261:
When a tag is generated by a UA for insertion into a request or response, it MUST be globally unique and cryptographically random with at least 32 bits of randomness.
Kamailio has 16 instead and distribution is not good. I look at tags for 419485 sip flows (different callid) and table below (top keys ordered by count): tag suffix; count for different flows with this suffix ed54 6258 d118 5988 56ce 5923 a7a5 5220 de51 2150 82d8 1143 cf52 890 af92 740 7b5f 534 85f7 307 e553 163 7f7e 138 1d55 130 1afe 62 5a69 43 7caa 18 8474 18 9db2 18 11d3 18 f9ff 18 5420 17 dae6 17 908d 17 ede4 17 09ee 17 96be 17 25dc 17 af6d 16 2506 16 3da0 16 f161 16 1c29 16
#### SIP Traffic To: sip:039*101@host:5071;tag=555d2c3eafafcba8ac92b676e91bb6ed.58eb