Telecom Abbreviations and Acronyms

1. U
   Micro
2. AAR
   Automatic Alternate Routing
3. ACK
   Acknowledge (telecommunications; Cf. NAK)
4. ACK
   ACKnowledgment
5. ACL
   Access Control List
6. ACL
   Average Call Length
7. ACL
   Asynchronous Connection-less Link
8. ADU
   Analog-to-Digital Unit
9. ADU
   Accumulation and Distribution Unit
10. ALS
    Accounts Ledger System
11. ALS
    Alternative Line Service
12. APN
    An Access Point Name
13. ASP
    Application Service Provider
14. ASP
    Active Signaling Protocol
15. CAV
    Constant Angular Velocity
16. CER
    Cell Error Ratio
17. CIX
    Commercial Internet Exchange
18. CPU
    Central Processing Unit
19. CSS
    Customer Service System
20. CSU
    Channel Service Unit

Last updated: October 28, 2020 — Total entries: 29,496