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Newbie
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Message 1 of 2

Digital phone service

When this comes online (I assume I can’t at the moment YO postcode); Why are we going to need a special phone? Why can’t we use an app on our mobiles, or even just a third party voip app like sipgate, if you don’t want to create your own?

Thanks

James

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Distinguished Sage
Distinguished Sage
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Message 2 of 2

Re: Digital phone service

@gigantojim 

You are assuming that BT are using SIP, and not a more direct connection like ISDN, which does not use the Internet. ISDN is well established within BT, and is 100% secure and has guaranteed call quality.

There is no need for BT to use the Internet for routing, as traffic can be inserted directly into the core ISP nodes.

https://en.wikipedia.org/wiki/Integrated_Services_Digital_Network

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