Verizon Wireless Clarifies LTE Timeline
Sim Card--YES!!!!
Yes that is what it said. You didn't expect verizon to allow something and not lock down their devices did you?
Reason I left them and took all 7 of my lines to AT&T
Since AT&T and Verizon will both use 700mhz for thier LTE networks, the hardware will already be setup to use either. The case with GSM right now, is that the phone only needs to be unlocked, and it will work on any GSM network (that the phone can pick up).
I wonder how that'll work out...
Verizon has built an expansive CDMA network, and will remain in operation well into the future. There is no way Verizon could immediately overlay the entire CDMA network with LTE and instantly shut down the CDMA network, otherwise they would lose millions of customers.
Because of this, chances are that the majority of Verizon's phones will be dual-mode LTE/CDMA for several years rather than LTE-only. Try using one of those phones on AT&T and you will have very little coverage except in areas that AT&T operates an LTE network.
At the same time, most of AT&T's phones will probably be LTE/UMTS/GSM. Verizon doesn't use UMT...
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irockash said:
Right-o. How long did it take for them to kill TDMA (analog) networks?
First, TDMA (aka D-AMPS) and Analog (aka AMPS) are not the same thing. AMPS is the original mobile standard that was used in the U.S. D-AMPS was a digital extension to AMPS and was the first digital mobile standard to be used in the U.S.
AMPS was introduced in 1983. D-AMPS aka TDMA was introduced in 1990. Both AT&T and Verizon shut down their TDMA and AMPS networks in February 2008. Alltel soon followed in October 2008. U.S. Cellular also shut down their TDMA/AMPS network in early 2009.
Second, Verizon never used TDMA/D-AMPS, however, AT&T did.
The dual-mode LTE/CDMA solution for Verizon will probably be si...
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As long as people demand free phones you'll have locked phones specific to networks. Considering discounted phones are the biggest draw to contracts for most people, I don't see ATT just allowing basic Verizon phones on their network either.
Jitter is the difference in the time it takes packets to reach their destination or the difference between pings. By default, VOIP such as SIP and IAX typically build in about a 30ms voice buffer to accomodate for varrying responce times. When your ping or jitter gets outside of that range, you start loosing voice and the call gets garbled. So if your lowest ping is 50ms, then for VOIP to work well, your ping would have to stay within 50-80ms. Anything higher, and you loose quality.
VOIP actually takes very little badwidth depending on the codec used. G7...
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PooFlinger1 said:
Technically, from a bandwith state, carriers 2G could probably even handle a VOIP call. However the jitter would kill it and is what keeps VOIP from happening like that.
Actually, overall high latency is what makes 2G VoIP impractical. Jitter is just the average delta or standard deviation w/in that latency.
AJ
high end phones will more than likely be swappable (eventually) But don't expect entry level models like the EnV line, etc to work on other carriers. Contracts build networks, not month to month service. at least initially.
It's not corporate greed, its companies trying to break even. Considering that Verizon is one of the only companies really turning a profit, I would say the other carriers need to start taking notes. You don't provide a service without money.
If you want to blame greed, look no further than the consumer who wants everything for free ...
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Menno said:
If you want to blame greed, look no further than the consumer who wants everything for free and accepts no responsibility.
Exactly
This forum is closed.