Hi All, I have a project about IP telephony, we want to build a switch phone using Asterisk, the amount of users is of 15000 and also it was needed to connect with other PSTN using SS7 my consult is: asterisk can be used for this ammount?, Can I to build a switch and using SS7 for example the SS7 of teleprime www.telerpime.com (SS7 to SIP) Thanks in advanced, Regards _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/