List of Abbreviations
| 10GE | 10 gigabit Ethernet |
| 1GE | Gigabit Ethernet (IEEE 802.3 standard interface) |
| 1x | (CDMA2000) 1 times Radio Transmission Technology |
| 2G | 2nd generation mobile system, GSM |
| 3G | 3rd generation mobile system, WCDMA |
| 3GPP | 3rd Generation Partnership Project |
| 64-QAM | 64-level Quadrature Amplitude Modulation |
| AAL2 | ATM Adaptation Layer 2 |
| AAL2SIG | AAL2 Signaling |
| AAL5 | ATM Adaptation Layer 5 |
| AC | Attachment Circuit |
| AC | Admission Control |
| ACH | Associated Channel Header |
| ACK | Acknowledgment |
| ACR | Adaptive Clock Recovery |
| ACR | Adaptive clock recovery |
| ADM | Add-drop Multiplexing |
| ADSL | Asymmetric Digital Subscriber Line |
| AF | Assured Forwarding |
| A-GPS | Assisted GPS |
| AH | Authentication Header |
| AIMD | Additive Increase Multiplicative Decrease |
| AIS | Alarm Indication Signal |
| AKA | Authentication and Key Agreement |
| AM | Acknowledged Mode |
| AMBR | Aggregate Maximum Bit Rate |
| AMR | Adaptive Multi-Rate |
| ANSI | American National Standards Institute |
| AP | Access Point |
| APS | Automatic Protection Switching |
| ARIB | The Association of Radio Industries and Businesses |
| ARP | Allocation and Retention Priority |
| ARP | Address Resolution Protocol |
| ARQ | Automatic Repeat Request |
| AS | Autonomous System |
| ATIS | The Alliance for Telecommunications Industry Solutions |
| ATM | Asynchronous Transfer Mode |
| ATM | Asynchronous Transfer Mode |
| AU | Administrative Unit |
| BC | Boundary Clock |
| BCH | Broadcast Channel |
| BCP | Best Current Practice |
| BE | Best Effort |
| BFD | Bidirectional Forwarding Detection |
| BGP | Border ... |
