- Private Branch Exchange
A switching system owned by a client that acts as an in-house telephone exchange with advanced features and capabilities.
- Pulse Code Modulation
A method of digitally encoding speech
- Point Code
- A number that uniquely identifies a node in an SS7 network. Used to direct messages to the appropriate destination. Each switch, Service Control Point (SCP), Signal Transfer Point (STP), and IP (Intelligent Peripheral) has a unique point code in the SS7 network.
- Plain Old Telephony System
- Point-to-Point Protocol
- Primary Rate Interface
- Public Switched Telephone Network