Cisco CISCO2821-SRST/K9 | 2821-SRST/K9 2821 Router Voice Bundle With PVDM2-32 SRST 48User License And SP Services

1. Brand: Cisco
2. Model: 2821 Voice Bundle Router
3. Network Connectivity Technology: Wired
4. Data Link Protocol: Ethernet, Fast Ethernet, Gigabit Ethernet
5. Network / Transport Protocol: IPSec, PPPoE, DHCP, DNS, L2TPv3, NTP, PPPoA, PPTP, RTP, SIP, SRTP, TFTP
6. Routing Protocol: BGP-4, EIGRP, HSRP, OSPF, RIP-1, RIP-2, Static IP routing
7. Remote Management Protocol: CLI, HTTP, HTTPS, RMON, SNMP 3, SSH, Telnet
8. Encryption Algorithm: DES, Triple DES, AES
9. Authentication Method: Kerberos, RADIUS, TACACS+, X.509 certificates
10. Voice Codec: G.711, G.723.1, G.728, G.729, G.729a, G.729ab, G.726
11. Voice Features: Voice mail support, echo cancellation, comfort noise generation (CNG), voice activity detection (VAD), caller ID, call waiting, call forwarding, call hold, message waiting, Distinctive Ringing, call transfer, auto-answer, H.323 support, SIP support, Cisco CallManager Express (CME) support, Cisco Survivable Remote Site Telephony (SRST) support
12. Interfaces: 2 x 10/100/1000Base-T WAN, 2 x USB, 4 x 10/100Base-TX LAN, 1 x management - console - RJ-45, 1 x management - auxiliary - RJ-45, 1 x voice - FXO - RJ-11, 1 x voice - FXS - RJ-11, 1 x voice - T1/E1 - RJ-48

Notes:
1. The Cisco 2821 Voice Bundle Router is ideal for small to medium-sized businesses that require a reliable and secure network.
2. The router supports a wide range of protocols and authentication methods, making it highly versatile.
3. The voice features of the router make it an excellent choice for businesses that require a phone system, with support for voicemail, caller ID, and call forwarding.