It has almost same features like the DSL modem except that it has the ATA port on it. Basically there are two types of the VOIP routers available. One type of it comes connected with the particular service providers.
There are many VOIP service providers that provide the router free of cost like Vonage. This type of router is normally pre-configured and you can use it easily without making many configurations.
In the other type, you need to make the configurations by yourself i.e. set the IP address, default gateway, DNS and other settings. It provides you the flexibility to change the service provider.
The common manufacturers of the voice over IP router are D-Link, Cisco, LinkSys, Juniper, Alcatel and Nortel.
Most of the VOIP routers provide supports the complete industry standards and provide the following features.
- 12, 16, 24 and 36 FXO ports.
- Expansion slots for or ISDN BRI, T1, E1, and FXS interface cards.
- ON Board DSP Support.
- LAN to LAN connectivity.
- V.35 Serial Interface.
- Industry Standard CLI, TFTP configurations and software upgradeable EMC.
- Static Firewall with NAPT and Access control list.
- ISDN voice calls over the same IP link.
- Voice VPNs
- Complete Access Routing
- Integrated WAN uplink.
- PPPoE, DHCP, DynDNS, multiple VLANs and VPN with IPSec
- Full SIP and T.38 support.
Based on the unique requirements of your business you need to select the VOIP Router that can fulfill all the communication needs of your organization.