Telecom
VFXTH
- VoIP FXO FXS Gateway with Capacity of Call Detail Records of 2000 Calls
- Caller ID Presentation on Analog Station
- High-quality Voice Conveyance over IP Networks
- Efficient Data Conveyance
- Secure Communication between VoIP and Analog Networks
- VoIP Security Over SRTP/TLS Encryption
- Restrict Unwanted Calls with a List of Denied Numbers through VoIP FXO FXS Gateway
Features
- Auto PSTN Fallback for Assured Connectivity
- Built-in PBX Functionality
- Hotline Extension Dialing
- Digest Authentication
- Automatic Number Translation
- Call Detail Record
- CLI Display
- Emergency Number Dialing
- SNMP Monitoring
Specifications
| SIP Accounts | 32 |
| Data Network | 1 Port 10/100 Base-T (RJ45) |
| VoIP Protocol | 48SIPv2, SDP, RTP (RFC 2833) |
| Network Protocol | IPv4, TCP, UDP, PPPoE, DHCP Server & Client, SNTP, NAT, STUN, HTTP, DynDNS, Port Forwarding and DMZ |
| Voice Codecs | G.711 A/µ-Law, G.723.1, G.729AB, iLBC, GSM-FR |
| Line Echo Cancellation | G.168 with 128ms Tail Length |
| Voice Processing Techniques | Dynamic Jitter Buffer (Adaptive) Comfort Noise Generation (CNG) Voice Activity Detection (VAD) |
| Fax over IP (FoIP) | T.38 and Pass-Through |
| Quality of Service (QoS) | Layer 3 DiffServ and ToS |
| Security | SRTP/TLS over SIP |
| FXO | – |
| Signaling | Loop Start |
| Connector | RJ11 |
| Loop Limit | 1200W |
| DTMF Dialling & Reception | ITU-T Q.23 and Q.24 |
| CLI Reception | DTMF, FSK ITU-T V.23 and FSK Bellcore 202, TEL URI |
| Return Loss | >18dB |
| Call Maturity | Delay and Polarity Reversal |