| Abbreviation | Definition |
|---|---|
| PAT | Portable Appliance Testing |
| PATS | Performance Analysis Of Telecommunication Systems |
| PATU | Pan African Telecommunication Union |
| PAW | Personal Area Wireless |
| PBTL | Pacific Bangladesh Telecom Limited |
| PC | Personal Communications |
| PCA | Protective Connecting Arrangement |
| PCC | Protected Cell Company |
| PCF | Point Coordination Function |
| PCIP | Provider Claims Intervention Program |
| PCM | Personal Call Manager |
| PCMCIA | Personal Computer Memory Card International Association |
| PCMM | PacketCable MultiMedia |
| PCMS | Personal Communications Management System |
| PCN | Parent Communication Network |
| PCO | Public Call Office |
| PCO | Public Calling Office |
| PCP | Packet Chain Protocol |
| PCR | Peak Cell Rate |
| PCRF | Policy Charging and Rules Function |