Glossary
- ANI
- Automatic Number Identification
- BlackBerry MVS
- BlackBerry Mobile Voice System
- DDI
- Direct Dialing Inward
- DID
- Direct Inward Dialing
- FQDN
- fully qualified domain name
- IDD
- international direct dialing
- IP
- Internet Protocol
- NDD
- national direct dialing
- PBX
- Private Branch Exchange
- PSTN
- Public Switched Telephone Network
- RTP
- Real-time Transport Protocol
- SIP
- Session Initiation Protocol
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