Switchvox - How Many Digium Telephony Cards Can my PBX Support?

In theory,  the limit on how many Digium telephony cards you can have on a system is determined by the number of PCI and PCIe available ports on the system. Our drivers were designed to handle over a thousand channels without any issue.  Please note that a Digium card usually has many channels. For instance, a single digital span card can have up to 31 channels in E1 mode. As a general rule, we suggest to limit the cards to 3 per server.