Hello All. I have a SER with a Vocal B2bUA this one works great with FEE accounting and authorisation I have a freeradius server and my billing system does support digest authentication. But I simply can not make the b2bua works with my radius server. Note: I get a 0 in the 32bits authentication Now: the billing system will be in the SER or in the B2bua or both? Regards Humberto