1700144G1 - AdTran NetVanta 644 VoIP Media Gateway

Here are the technical specifications for the AdTran NetVanta 644 VoIP Media Gateway:

1. Dimensions: 1.75 x 17.25 x 11 inches
2. Weight: 6.5 lbs
3. Power Consumption: 20W maximum
4. Network Interface: 10/100Base-T Ethernet
5. Voice Interface: 4 T1/E1 ports
6. Voice Compression: G.711, G.726, G.729ab, G.723.1
7. Voice Quality: Dynamic jitter buffer, silence suppression, voice activity detection
8. Protocol Support: SIP, H.323, MGCP
9. Management: Web-based GUI, Command Line Interface (CLI), SNMP
10. Security: HTTPS, SSH, SSL/TLS
11. Call Features: Caller ID, call waiting, call transfer, call forwarding, 3-way conferencing, call park
12. QoS: DiffServ, 802.1p/q

Helpful notes:
1. The AdTran NetVanta 644 VoIP Media Gateway supports up to 120 simultaneous calls.
2. It can be used as a standalone device or as part of a larger VoIP network.
3. The gateway is designed for use in enterprise-level voice networks and offers advanced features for call routing and management.