The tm module needs to know the name of the attributes AVP, which is currently passed as a modparam to the usrloc module. Therefore to 'activate' this bugfix, you need to pass the same modparam to the tm module.E.g. `modparam("usrloc|tm", "xavp_contact", "ulattrs")` If the modparam is not given to tm, the system will behave as before. There are no changes to the way the functions are called.
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