opensips usrloc - SERP Analysis

https://opensips.org/docs/modules/2.4.x/usrloc.html

https://opensips.org/html/docs/modules/2.3.x/usrloc.html

https://opensips.org/html/docs/modules/1.11.x/usrloc

https://www.opensips.org/Documentation/Development-Manual-ModAPI-Usrloc-3-1

https://github.com/OpenSIPS/opensips/blob/master/modules/usrloc/ul_mod.c

https://opensips.org/html/docs/modules/3.4.x/pua_usrloc.html

https://www.opensips.org/Documentation/Modules-3-3

https://github.com/OpenSIPS/opensips/issues/1976

https://users.opensips.narkive.com/C9oz271P/opensips-using-contact-replication-and-ha

https://www.opensips.org/Documentation/Development-Manual-ModAPI-Usrloc-3-7