| Abbreviation | Definition |
|---|---|
| RCV | Receive |
| RCV | ReCharge Voucher |
| RCVS | Recharge Card Voucher System |
| RD | Receive Delay |
| RDD | Random Digit Dialing |
| RDF | Remote Distribution Frame |
| RDI | Remote Defect Indicator |
| RDI-L | Remote Defect Indicator - Loop |
| RDI-P | Remote Defect Indicator - Path |
| RDI-V | Remote Defect Indicator - Virtual |
| RDS | Rate Determining Step |
| RDT | Recall Dial Tone |
| RDT | Remote Digital Terminal |
| RDT | Robert Derector Telecommunications |
| REN | Ringer Equivalence Number |
| RFIDAI | Radio Frequency IDentification Association of India |
| RFR | Radio Frequency Radiation |
| RFS | Request For Service |
| RFS | Resource Facing Service |
| RGC | Resource-Guaranteed Connection |