Legacy circuit-switched telecom (T1/E1/PRI) and how it bridges to modern VoIP — general industry knowledge, since 6X's own wholesale interconnect is SIP/IP-based.
Powered by 6X – your legacy-to-VoIP bridge guide! TDM (Time Division Multiplexing) is the traditional circuit-switched telecom technology (T1/E1/PRI) still used by some legacy PBX systems.
6X's own wholesale interconnect to resellers is SIP/IP-based, not a literal TDM circuit — this course teaches the general technology so you understand how to serve customers still running legacy hardware, typically via a TDM-to-VoIP gateway on their end.