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#### Type Of Change - [ ] Small bug fix (non-breaking change which fixes an issue) - [X] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality)

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#### Description <!-- Describe your changes in detail -->

We have some user agents that make another subscribe with the same callid, when IP changes. Need to delete the old subscription in that case. You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/2254

-- Commit Summary --

* presence: add delete_same_subs modparam

-- File Changes --

M src/modules/presence/doc/presence_admin.xml (20) M src/modules/presence/hash.c (34) M src/modules/presence/hash.h (4) M src/modules/presence/presence.c (2)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/2254.patch https://github.com/kamailio/kamailio/pull/2254.diff