What vexes VoIP users?
khelms at ispalliance.net
Thu Mar 3 15:08:36 CST 2011
On 3/3/2011 3:47 PM, Alexander O. Yuriev wrote:
>> There's no particularly good reason that a VoIP-over-cable system
>> shouldn't be able to hand off calls to an arbitrary SIP device.
> No, there's no particulary good technological reason why VOIP-over-cable
> system shouldn't be able to hand off calls to an arbitrary SIP device.
> The reason is purely business - it will destroy their own voice service user base.
PacketCable pre-dates network neutrality discussions in the US, think
1999 for version 1.0
So we have a working technology that pre-dated significant direct to
consumer SIP services. Vonage went direct to consumer in 2002, before
that their model was selling to the cable operators.) Now its true
there is no technical reason that 3rd party SIP devices couldn't be
included in the mix, especially since PacketCable 2.0 moves from MGCP to
SIP. However, there is a ton of work to build an interoperable protocol
for signaling call setup, AAA, number ports, etc, etc. Integrating 3rd
party SIP into the existing PacketCable standards is certainly possible,
but who is going to pay for it? I know of no 3rd party VOIP vendors
that even want to go down this path. Vonage's technical folks seem
quite happy to have a ~60% success rate in my experience troubleshooting
networks and Skype seems even more disinterested. I also think you
greatly over estimate the amount of concern generated by MagicJack,
Skype, Vonage, et al.
Vice President of Technology
ISP Alliance, Inc. DBA ZCorum
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