The Jeff Pulver Blog: Carl Ford talks back to Alec and Martin in regard to his Features Discussion:

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June 06, 2006

Carl Ford talks back to Alec and Martin in regard to his Features Discussion:

Carl Ford's recent post on feature interaction created a little dialog between Carl and some members of the IP Communications Blogsophere.

Yesterday Carl shared his feedback to comments made by both Alec Saunders
and Martin Geddes.

In response to Alec's posts, Carl wrote:

"Scott Bradner would tell me I should be able to use a cookie to when voice mail is left behind. I don’t have to poll and in theory the presence of my voice mail box could be marked available, once.

But that would mean that everyone had agreed that what my presence meant.

If I can't get the concept of state right and agreed to, what chance do I have for features being transferred?

I feel like we have enabled chaos.

The model of a Vonage feature with mobile is a good one, since they are not in control of the wireless network (yet ;<)). But even if they were it would an issue of transferring the information appropriately.

If you and I both wrote a feature called, "Charge Me" what are the odds that it would look the same? Work the same? So lets say you and I are talking and we invoke the feature, what happens next and why?

My sense is that the end device will be the key manager of this feature and therefore, a proxy could become irrelevant.

It could be your charge me bills my account, and my charge me gives you a static electrical impulse, but that bottom line is ... we are both in for a shock."

and to Martin's post, Carl wrote:

"The fear I have is that the PSTN and SKYPE may in the end be exactly the same - closed networks with small points of interconnection and little interoperability.

I am Globalcomm and I sat in and listened to the ESPN and Sprint folks talk about MVNO's. If I wanted to something really cool on an MVNO of my own, what hope would I have with interoperability? practically - none, unless I had total control of the end point?

What happened to Interoperability?

I can paint a picture of the future that we have more devices that represent specific interests, Each with have bells and whistles that are cool and they may even use SIP! But I doubt I will reach them via Proxy unless its my proxy and my end point."

Tags: VoIP, SIP, Martin Geddes, Alec Saunders, Carl Ford

(c) 2006 Jeff Pulver. All Rights Reserved.
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