DTNA is a software device driver supplied with Blueworx Voice Response Version 6.1. This device driver provides the Voice-over-IP (SIP) streaming interface between Blueworx Voice Response and the system unit TCP/IP (probably Ethernet) adapter and interface.
It is possible for DTNA software adapters to be installed in the same system unit as the DTTA adapters with the restriction that a maximum of FOUR adapters of any type can be installed in the system unit.
Each installed DTNA adapter supports FOUR trunks with each trunk providing VoIP telephony support for either 24 or 30 channels if configured as T1 or E1 respectively. If you have DTTA PSTN adapters in the same system unit for which you are configuring DTNAs, you must set the mode (T1 or E1) of the DTNAs to be the same as DTTA. If your system is ‘pure VoIP’ (no PSTN adapters), it is not mandatory for you to set the mode appropriate to your country but it is highly recommended that you do this.