Introduction – Features – Feature Details – Deployment Options – Technical Specs
Connectivity
- Analog / PSTN Telephone Lines
- Primary Rate Interfaces (PRIs)
- Internet Telephony Service Providers (ITSPs)
- Inter-Asterisk Exchange (IAX) Bridging
Quality Assurance
- Hardware Echo Cancellation
- Resilient Call Routing
- Battery Backup Units
- Surge Suppression
Performance Options
- Disk Mirroring (RAID 1)
- 802.3af Power over Ethernet (PoE)
- Automated Backups
- Centralized Power
- Redundant Power Systems
- Load Balancing
- Automatic Failover
Communication Protocols
- SIP (Session Initiation Protocol)
- H.323 Voice
- MGCP (Media Gateway Control Protocol)
- SCCP (Cisco® Skinny®)
PRI-specific Protocols
- 4ESS
- BRI (ISDN4Linux)
- DMS100
- Lucent 5E
- National ISDN2
Speech Codecs
- G.711 / uLaw
- G.729 (with licensing)
- G.726
- G.722
- GSM
