I have a PRI line and i need to set up a PBX having 30 extension that can make call and receive calls.Which card i need to purchase ?I supposed to need a single span DIgital card to receive the calls, but my question is for the 30 extensions to work what is the extra hardware i in need. im using analog phones, need to make and receive call both internally and externally.
How can i connect the 30 analog phone this PBX.??
Can anybody tell a solution…