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Not really, most of today's SS7 traffic goes over IP, so if IP is somehow flawed you'll be in trouble in either case. Luckily IP links are pretty reliable so t
by Rjevski 9y ago
Not really, most of today's SS7 traffic goes over IP, so if IP is somehow flawed you'll be in trouble in either case.
Luckily IP links are pretty reliable so that's not an issue - VoIP also allows for more resiliency, for example my phone has two independent network connections, mobile and Wi-Fi, and my VoIP provider has two servers (advertised via DNS SRV records). So my VoIP app can try each server over each connection to make a call. A conventional landline or mobile on the other hand has a single link to the telco, so if that's down you're in trouble.
- Aloha 9y agoIP != Internet Yes, much traffic does traverse on IP now - but its private tightly controlled networks.
- tatersolid 9y agoNot "private" as in "dedicated to voice traffic". Almost all modern telcos route their PSTN as packets on the same MPLS/IP or pure-IP network as internet traffic. This network is usually "privately owned" by the telco in the USA, but is publicly owned or subsidized in many parts of the world. But there is in general no "separate" PSTN other than last-mile copper in most of the world.