| ACD |
Automatic Call Distribution |
| ANI |
Automatic Number Identification |
| API |
Application Programming Interface |
| ATM |
Asynchronous Transfer Mode |
| BRI |
Basic Rate Interface - ISDN 2 |
| CFTP |
Continuous Fault Tolerant Processing |
| CLI |
Calling Line Identity |
| CO |
Central Office - USA term meaning Public Telephone Exchange |
| CCU |
Central Control Unit |
| CPS |
Carrier Pre-Selection |
| CPU |
Central Processor Unit |
| CTI |
Computer Telephony Integration |
| DASS |
Digital Accessing Signalling System |
| DDI |
Direct Dialling In |
| DISA |
Direct Inward Signalling Access |
| DLL |
Dynamic Link Library |
| DPNSS |
Digital Private Network Signalling System |
| DR |
Disaster Recovery |
| DSP |
Digital Signal Processor |
| DTMF |
Dual Tone Multiple Frequency or Touch Tone |
| FMS |
Fax Messaging Server |
| GUI |
Graphical User Interface |
| ISV |
Independent Software Vendor |
| IVR |
Interactive Voice Response |
| LAN |
Local Area Network |
| LCR |
Least Cost Routing |
| LAP |
Local Area Paging |
| LD |
Loop Disconnect |
| MAPI |
Microsoft's Messaging API - Application Programming Interface |
| MF |
Multi Frequency |
| MIS |
Management Information System |
| MVIP |
Multi Vendor Integration Protocol |
| NGN |
Non Geographic Number I.E.03, 08,09 numbers |
| NIC |
Network Interface Cards |
| NTS |
Novel Network Telephony Services |
| PABX |
Private Automatic Branch Exchange |
| PBX |
Private Branch Exchange |
| PC |
Personal Computer |
| POT |
Plain Ordinary Telephone |
| PRI |
Primary Rate Interface - ISDN 30 |
| PSTN |
Public Switched Telephone Network |
| PSU |
Power Supply Unit |
| RAM |
Random Access Memory |
| RAS |
Remote Access Services |
| RISC |
Reduced Instruction Set Computing |
| SCSA |
Signal Computing Services Architecture |
| SMDI |
System Management Data Information |
| SMS |
Short Message Service |
| TAPI |
Telephone Application Programming Interface - Microsoft's |
| TSAPI |
Telephone System Application Programming Interface |
| CSTA |
Computer Supported Telephony Application |
| CSTAPI |
Computer Supported Telephony Application Programming Interface |
| TBR |
Time Break Recall |
| TUI |
Telephone User Interface |
| VMS |
Voice Messaging Server |
| VAR |
Value Added Reseller |
| VoIP |
Voice over Internet Protocol |
| VPN |
Virtual Private Network |
| WAN |
Wide Area Network |
| ISDN |
Integrated Services Digital Network |
| ISDN 2 |
Basic Rate = 2 x 64Kbps
2B+D = 2 Channels of 64K also referred to as ''Bearer'' channels
and 1 referred to as ''Data'' or signalling
Channel of 16K.
Total bandwidth is 128K. |
| ISDN 30 |
Primary Rate = 32 x 64Kbps
30B + 2D Protocols: DASS II, DPNSS & ETSI Q931
32 Channels = 30 Channels of 64K referred to as ''Bearer''
Channels
and 2 referred to as ''Data'' or signalling
Channels.
Total bandwidth of approximately 2 Megabits. |
| Notes |
Total number of bits available = 2,048,000 - ie: 32 x 64 - ie
2 Meg. |
