Can I connect my existing phone lines to PBXtra?
Yes, with the appropriate expansion cards. PBXtra is designed to expand to accommodate the use of PSTN (Public Switched Telephone Network). To use PSTN, you will need to order a Base Expansion Card and as many Analog Line Ports as you want PSTN-lines on that card. Each Base Expansion Card can hold up to 4 ports. If you want to connect to a T1/PRI line, you will need to order a T1 interface card from eSmith.
