Digium Voice Compression Card

Digium’s voice compression cards enhance the capabilities of Asterisk in VoIP and Hybrid Environments by lowering both the bandwidth used by a factor of 8 and, through an efficient voice compression card, also CPU usage. Digium cards can be used with any version of Asterisk using the DAHDI driver framework. Asterisk and DAHDI are available for free from the Asterisk.org website.