Verizon "Direct Connect"?

Rumor has it that both Sprint and Verizon are working on a PTT feature.

 

It has been rumored about the PTT feature, but I have not actually heard anyone from corporate Verizon say that it is coming for sure.

 

Sprint is planning to have PTT in by early 2003.

 

Both carriers are working on it. Look for Verizon to roll PTT in 1st half of next year. 100% 3G will be needed first.

 

I have heard, through posts in this forum, that the PTT will be full duplex. If the PTT will be a full duplex conversation (both parties able to speak at the same time) than how is that a true PTT. PTT stands for "Push to Talk" meaning you push a button to transmit, and when transmitting you can not recieve.

How can a PTT system be full-duplex and how is that different then a full duplex cellular conversation?

 

Its a very plausible idea to be able to transmit and recieve, although it would require a whole new piece of hardware in the phone...

 

How can a PTT system be full-duplex and how is that different then a full duplex cellular conversation?

I agree with you it sounds to me like a speaker phone with auto answer function??

Am I correct??
Mike
Oxford GA

 

ALLTEL to launch too. Probably along side Verizon. Everything subject to change though.

 

will this be direct connect or what all i want to know

 

Nextel's patent on Direct Connect ends this month. You can expect to see PTT sometime next year, probably close to 3Q or 4Q 2003.

As stated earlier, it will require an entirely different piece of hardware. I'm sure you guys have seen Nextel phones. IMHO, PTT will be a niche thing.

 

Give nextel a little bit of competition for the people who actually like the annoying direct connect crap I'd say nextel will drop quick.

 

I called verizon myself and its confirmed that the ptt feature will be in market in the 2nd quarter of 2003. The rep told me that they will have around 6 phones to come out with this feature.

 

BusinessWeek 12/23/02

Further, it's far from certain that competitors will be able to get it right in just a year or two, given that it took Nextel a decade to work out Direct Connect's kinks. Plus, "investors don't want to hear about huge new capital-spending plans in the telecom sector right now," says Barajakly of Williams Capital.


Nextel's competitive advantage comes down to a matter of seconds. That is, its proprietary technology, developed by partner Motorola (MOT ), relies on cell phones that are in communication with the local-network towers virtually every second. Users can conduct a private two-way radio communication over cell phones or interact with multiple co-workers or clients across town. They don't have to dial numbers or make elaborate preparations for a conference call. As long as other users' Nextel phones are turned on, a caller can push a button and reach them in a second. On all other mobile-phone networks, handsets send a signal to the towers every 6 to 10 seconds, indicating that the phone is nearby and available to receive a call. This signal gap in most cell-phone networks creates an obstacle for companies trying to develop their own PTT functionality. At any given time, a phone on a standard mobile network may not receive the PTT signal for several seconds. A 10-second delay "may seem like an eternity," analyst Craig Mallitz says. Why not just dial the number instead?

 

Now you know why Nextel (iDEN) phones' standby time is so poor compared to CDMA. But then again, early CDMA phones, such as the Nokia 2180, were worse than ALL flavors of TDMA when it came to standby time...

ALSO...PTT on CDMA will run as VoIP DATA (not just a half-rate call like on iDEN) and will be subject to the usual latency/jitter/etc. issues that affect VoIP in general.

IMO, PTT on CDMA may very well be a flop because of the call setup/slot cycle issue -- and because Mot's iDEN phones are so much more durable than most CDMA phones (I can't even begin to see a consumer electronics manufacturer like Samsung or LG building a mil-spec-rated phone!)

-SC

 

6 phones in a matter of a few months? Don't believe everything the reps tell you...

 

well they said in a time frame of 8-10 months not 3 months. but who know huh