Asterisk Cards a.k.a Asterisk Interface cards or voice cards; are used in making of VoIP / SIP based IP PBX or VoIP Telephony Phone Systems. Asterisk cards are mainly of two types Analog card (FXS / FXO card) and Digital (PRI cards or E1 cards). Asterisk interface cards are available in PCI and PCIe form factor. Now you can build your own PABX according to your budget. All of our Asterisk Card work with Asterisk gui eg AsteriskNow, Trixbox, VICIDial, Elastix and FreePBX. Our Asterisk cards are very efficient for CPU load and best price! You can use them in building any type of Asterisk Server or SIP server. We carry huge range of hardware for Asterisk cards our main brands are Synway , Digium and Sangoma.