Hello, I see here from time to time a suggestion to turn off presence in order to free CPU cycles. We are using Freeswitch inside an organization environment, which means that presence is crucial. I am also using the limit function using ODBC backend. Currently we have 300 extensions, but I would like to be prepared for an expansion (over 1,000), Hence, I have a few questions: - I currently have presence enabled for all phones; shall I segragate the phones into two groups, one with presence, one without? - I am using MySQL via ODBC interface for the core and our usage. It is on a "regular" disk, and I see no performance problems at present. Shall I consider moving to Postgress, or continue with MySQL? - All the phones share the same SIP profile. Will this be a bottleneck? The audio is passed through FS (in order to detect fax and DTMFs). Thanks! __Yehavi: