Multiple VOIP providers on 1 internet connection?

I live in Melbourne, Australia and have VOIP service from Vonage in the USA that has worked out great for calls to and from the US.

Because I now officialy hate Telstra, I would like to switch my local Melbourne Phone service to VOIP as well. Since Vonage does not have a presence here yet, I would need to sign up with an Australian VOIP provider. Now can I have VOIP Service from 2 differenct providers at the same time, or will there be a conflict (I'm thinking the various VOIP providers all use the same tcp and udp ports).?

Thanks in advance.

I use X-LITE and have Gosiptel and VOIPUSER setup OK.

You can input the details in the System Settings SIP Proxy section.

If you use Hardware you may not be able to set up two providers. It depends on your particular hardware.

Hope this helps.

Mark

It depends on a few things, firstly your router most people use standard routers running DHCP/NAT (ie internal IP addresses), secondly assuming this first, how your provider helps manage this problem, finally your client.

Some like providers depend on port forwarding; obviously you can only port forward to one device. Others support STUN, if your client support individual STUN per line (Snom hardphones, x-ten softphones), then you can have as many providers as lines the device supports, and others support outbound proxy, here again if your device supports an outbound proxy per line, then you can have as many providers as lines the device supports.

The net result is that you need to match the client to the service provider to use multiple providers on the device.

An elegant way round this is to install a SIP aware router; they allow you to use any provider with any client, as the router is the outbound proxy, therefore removing the need to worry about STUN, NAT Traversal, Port Forwarding etc. The downside is the cost, especially if you have already purchased your router.

thomasconger :

I live in Melbourne, Australia and have VOIP service from Vonage in the USA that has worked out great for calls to and from the US. Because I now officialy hate Telstra, I would like to switch my local Melbourne Phone service to VOIP as well. Since Vonage does not have a presence here yet, I would need to sign up with an Australian VOIP provider. Now can I have VOIP Service from 2 differenct providers at the same time, or will there be a conflict (I'm thinking the various VOIP providers all use the same tcp and udp ports).? Thanks in advance.

I have three DVG-1402S VoIP routers behind my main uPnP Airlink101 AR410W WAP router. I also have several eyeBeam softphones on the same Internet feed. They all work concurrently. The key here is "uPnP" feature on the router. Since most ATA devices are SIP compliance, they use the same port to communicate with any SIP providers. With a uPnP NAT/Firewall router, setting up more than one ATA (VoIP) devices is a snap. Of course, this scenario is for anyone who shares the single IP address with a NAT/Firewall router. If your ISP provides you with several public IP addresses, then you just plug in additional ATA (VoIP) devices until you have exhausted the required bandwidth.