Digital Private Network Signalling System. The standards based signalling system employed in the UK to enable two PABX's to communicate via digital private circuits.

Signaling standard for digital private networks within the UK formulated jointly by BT and PABX manufacturers.

Digital Private Network Signalling System. Allows the transfer of PBX facilities between PBXs, even if they are different makes.

Digital Private Network Signalling System. The main type of digital private networking, it is similar to ISDN30 in that it comes in 2 megabit blocks, each capable of carrying up to 30 simultaneous telephone calls.

Digital Private Network Signaling System

Digital Private Networks Signalling System

The European standard for common channel signaling between PBXs.