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AT&T Sets Aggressive VOIP Target

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News Analysis
Light Reading
2/25/2004

AT&T Corp. (NYSE: T) laid out its VOIP plans today, setting itself a target of 1 million VOIP service users by the end of next year.

The carrier's VOIPmaster general, Cathy Martine, spelled out the operator's plan during an analyst conference (see AT&T Outlines Strategy to Investors). The company is to launch the service to consumers and businesses in 100 markets around the U.S. before the end of 2004.

The residential service, which will be available to broadband users, is called AT&T CallVantage and will be launched next month. Martine did not outline any price plans.

AT&T has been building up to this launch for the past few months, adding Sonus Networks Inc. (Nasdaq: SONS) softswitches to its network, running a trial service, and working to add emergency call features to its service (see AT&T Adds 911 to VOIP and AT&T Makes VOIP Plans).

The national carrier will not be the only major operator peddling VOIP to the masses this year, as the RBOCs are also gearing up to take the service mainstream (see RBOC VOIP Coming in 2004).

— Ray Le Maistre, International Editor, Boardwatch

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fbgboy
fbgboy
12/5/2012 | 2:22:28 AM
re: AT&T Sets Aggressive VOIP Target
The next big thing, with the right marketing they will get 1million +, how many will be happy though? just thinking...
5urf5hop
5urf5hop
12/5/2012 | 2:22:25 AM
re: AT&T Sets Aggressive VOIP Target
Just as happy at today's cell phone users. The quality of the two is almost the same.

2cents
lr_fanny
lr_fanny
12/5/2012 | 2:22:24 AM
re: AT&T Sets Aggressive VOIP Target
POTS is 8kHz with 64kbps. How can 8kHz and 24kbps be better?
DSLwired
DSLwired
12/5/2012 | 2:22:24 AM
re: AT&T Sets Aggressive VOIP Target
The voice quality will be better then a cell phone, AND BETTER THAN POTS, if they choose to use G.722.2 coding with 8 kHz of audio at 24 kbps. These VoIP implementors have to stop saying their service is "almost as good as POTS". Take advantage of the technology and give me something better.
alchemy
alchemy
12/5/2012 | 2:22:21 AM
re: AT&T Sets Aggressive VOIP Target
lr_fanny writes:
POTS is 8kHz with 64kbps. How can 8kHz and 24kbps be better?

I'm not familiar with that particular codec but I suspect that the 8 kHz is the highest frequency it can reproduce with reasonable accuracy? uLaw PCM doesn't work well above 3.1 kHz. You can do toll quality at sub-16kbps so it stands to reason that you can do better than uLaw PCM with 24kbps.
boozoo
boozoo
12/5/2012 | 2:22:15 AM
re: AT&T Sets Aggressive VOIP Target
Remember that the quality of a service encompasses more than just the type of codec.

Things that go through my mind are:
- service availability
- latency

Personally I can cut some slack if I can make that call any time I want if the quality is good enough to carry a conversation.

I will not be happy if I can hear the other person with CD-like quality but having to try the call a number of times before it goes through.

Boozoo




fbgboy
fbgboy
12/5/2012 | 2:22:13 AM
re: AT&T Sets Aggressive VOIP Target
my reference was to the advancement of SIP, the moment the channel remains continously open - or the appearance of such- it is not ip but tel and then the govt steps in to regulate. Quality and speed of SIP versus actual use of legacy PONs
DSLwired
DSLwired
12/5/2012 | 2:22:12 AM
re: AT&T Sets Aggressive VOIP Target
The VoIP service providers need to step up to ... change from the G.711 to G.722.2 codec to make VoIP a much better quality experience than a land line. It does not make sense to say VoIP is "just about as good voice quality as POTS" -- infact, VoIP can be a much better voice quality experience.

G.711 (11/1988) = Narrowband
----------------------------
G.711 is Pulse Code Modulation and is 8-bit samples at 8 kHz = 64 kbps data rate. The voice is sampled from 300 Hz to 3400 Hz yielding about 3.1 kHz of audio fidelity. We call this "toll quality" and have used this for 30+ years. As a narrowband codec we are forced to say "B like bravo, V like victor" since the voice is clipped.

Reference:
http://www.itu.int/rec/recomme...

G.722.2 (07/2003) = Wideband
----------------------------
G.722.2 is a wideband codec which will reproduce the audio up to about 8 kHz of fidelity. Some call this "FM quality". The reality is you can distinguish the B's and V's which are not clipped as happens with narrowband.

http://www.itu.int/rec/recomme...

In rolling out a VoIP service this will be a major detail so you can really hear a "pin drop".
Betelgeuse
Betelgeuse
12/5/2012 | 2:22:09 AM
re: AT&T Sets Aggressive VOIP Target
IG«÷ve been using VoIP over double hop satellite and it has been just as good as a cell phone connection. Naturally, there is a delay but other wise the quality is fine. Amazing what you can do with good traffic engineering and QoS.

Betelgeuse
SuperChargeAccess
SuperChargeAccess
12/5/2012 | 2:22:05 AM
re: AT&T Sets Aggressive VOIP Target
The only reason I put up with the voice "quality" of a cell phone is because I can carry that cell phone with me. I would not put up with it on a land line phone. If I can, I use land lines for better quality.

Since the amount of data transmitted is flexible, I would love to have multiple levels of service. I can see executives and businesses using a service that is significantly better than POTS.
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