forget VoIP: use the Plain Old Telephone System for important relationships

Posted Feb 9, 2006 14:03 UTC (Thu) by job (guest, #670)
In reply to: forget VoIP: use the Plain Old Telephone System for important relationships by ekj
Parent article: The Next Battleground for VoIP (O'Reilly)

When I toyed with VoIP back in the 90s we had 50ms as the limit of what is acceptable for voice. Today the networks are much faster so voice is easier, but the PSTN-gateways hasn't improved much, and they often introduce delays. The packetization itself has around 20ms delay to start with.

My brother lives 900km away here in Sweden. Our network roundtrip time is around 20ms which is acceptable. So it all depends on your network and puts very different demands on it than fast downloads.