![Draytek VigorIPPBX N22P ISDN TE/S0 Module Draytek VigorIPPBX N22P ISDN TE/S0 Module](https://voip.com.vn/5809-large_default/Draytek-VigorIPPBX-N22P-ISDN-TE-S0-Module.jpg)
Draytek VigorIPPBX N22P ISDN TE/S0 Module
Draytek VigorIPPBX N22P ISDN TE/S0 Module provides two switchable TE/S0 ports and two fixed S0 ports. The S0 ports (sometimes called NT ports) )are for connection to an existing ISDN PBX trunk port (input). Find out more at voip.com.vn