Failover switches (also called Fallback, Line Protection, or A/B Fallback switches) can switch a circuit between two based on a manual or automatic trigger. Some can be controlled via TCP/IP.
The following is not really a failover type of product, but it might be useful for some people:
Description: The single version provides ten identical outputs from a single T1/E1 input. The dual version provides four outputs for each of two inputs. So you could use this to connect one or two T1/E1 to multiple Asterisk servers (where one server would of course not be running Asterisk until the other server is dead)
UK & Worldwide VoIPon - Best Prices and Support on Openvox Failover Solution Rhino 1PFail Junghanns ISDNGuard and BeroNet Bero Fos Call for reseller pricing or International Shipping. VoIPon.
- POTS line failover
- OpenVox Failover Box FA40/FB40/FD40 Four Port Analog/BRI/T1/E1/Ethernet interfaces USB Controlled.
- Use a line splitter and hope Asterisk does not fail off-hook
- Use a line splitter that gives priority to one line (the backup line) See http://www.willyselectronics.com/pdfs/telephone.pdf and search for PN 30-9330 "Message Stopper".
- Viking Electronics makes a failover device for up to 6 lines: PF-6
- DataProbe switches (some controllable via TCP/IP)
- Cornet Technology switches
- WTI switches (some controllable via TCP/IP)
- the Sipura SPA 3000 has one fxo and one fxs port. If the power goes out it will automatically connect the two ports
- Shang332 provides power down and ip down failover. it can failover to pstn and also to another ip peer.
- berofos Failover Switch for Asterisk (controllable via Webbrowser)
- FailSafeVOIP Automatically Switch T1/E1/BRI/POTS Connections on failure
- Rhino Single Port Failover Switch USB controlled
- T1 failover
- OpenVox Failover Box FA40/FB40/FD40 Four Port Analog/BRI/T1/E1 interfaces USB Controlled.
- DataProbe switches (automatic failover and TCP/IP Control
- Cornet Technology switches
- WTI switches (some controllable via TCP/IP)
- berofos Failover Switch for Asterisk (controllable via Webbrowser)
- FailSafeVOIP Automatically Switch T1/E1/BRI/POTS Connections on failure
- Rhino Single Port Failover Switch USB controlled
- RS-232/V.35/etc failover
- Hullspeed switches (some controllable via TCP/IP)
- Altecon switches
- DataProbe switches (some controllable via TCP/IP)
- Cornet Technology switches
- WTI switches (some controllable via TCP/IP)
- Ethernet failover
- WTI switches (some controllable via TCP/IP)
- DataProbe switches (some controllable via TCP/IP)
- FailSafeVOIP Automatically Switch T1/E1/BRI/POTS Connections on failure
- Rhino Single Port Failover Switch USB controlled
- http://www.shoremicro.com/web1/sm2700.htm (Fastest failsafe failover available)
- generic RJ-45 failover (POTS,PRI,BRI,Ethernet...)
- ISDNGuard from Junghanns, keep-alive via RS-232
- Rhino Single Port Failover Switch USB controlled
- ISP failover
- Having multiple connections to the Internet from different providers can be a challenging configuration puzzle. Some routers are designed to make this easy for simple installations.
- See the Small Routers with Multiple WAN Interfaces section in VOIP Routers for more information.
The following is not really a failover type of product, but it might be useful for some people:
- T1/E1 Multiport Repeaters
- GL Communications Single/Dual Multiport Repeaters.
Description: The single version provides ten identical outputs from a single T1/E1 input. The dual version provides four outputs for each of two inputs. So you could use this to connect one or two T1/E1 to multiple Asterisk servers (where one server would of course not be running Asterisk until the other server is dead)
Where to Buy!
UK & Worldwide VoIPon - Best Prices and Support on Openvox Failover Solution Rhino 1PFail Junghanns ISDNGuard and BeroNet Bero Fos Call for reseller pricing or International Shipping. VoIPon.
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