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P990 - What is "PS only" "CS only" in Preferred Mode? |
Scooby Stevo
Joined: Dec 20, 2006
Posts: 62
From: Loughborough, UK
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Hi all
In Internet Accounts/Options/Preferred Mode what do the choices there mean and what do they alter?
Automatic
PS Only
CS Only
Cheers
P990i - Great phone - Wish I knew how to use it! |
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masseur
Joined: Jan 03, 2003
Posts: > 500
From: Sydney, London
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I'll post a quote of a part of a post I recently made on this question
On 2007-04-06 18:08:24, masseur wrote:
put simply...
cs is circuit switched. this is equivalent to dialup data (i.e. when you dial a telephone number) and the data is conveyed in a similar manner to a voice call
ps is packet switched. this is where packets of data are transmitted either by gprs or by 3g
cs and ps/gprs is gsm
ps/3g is umts
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anonymuser
Joined: Dec 17, 2002
Posts: > 500
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PS = Packet switched, aka GPRS/3G, where data is swapped in packets.
CS = Circuit switched, the old-fashioned dial-up method, where you open up a fixed circuit for data.
At least, that's my interpretation. |
Scooby Stevo
Joined: Dec 20, 2006
Posts: 62
From: Loughborough, UK
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Cheers Guys.
So no need to change from Automatic then generally.
P990i - Great phone - Wish I knew how to use it! |
tedx
Joined: Jan 11, 2007
Posts: 12
From: London
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If you select 'CS only' then you can only make a CS type connection as described above. You will not be able to make a GPRS / 3G connection, indeed I think you will find that the phone won't even connect to GPRS / 3G, it'll say 'gprs detached'.
If you set the phone to 'PS only', then you can make a GPRS / 3G connection, but not a CS connection at the same time as the GPRS / 3G connection is active. The implication of this is that you can't receive a call (which is CS) while your GPRS / 3G connection is active.
Setting the phone to automatic would normally be best, when you can have either connection and receive calls whilst your GPRS / 3G connection is active. |
c0mm0n
Joined: Jan 14, 2003
Posts: 216
From: Paris, France
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set to CS only for me, than my phone doesn't care for gprs (me neither), but 3G is working fine (mms/wap/data/visio).
The "CS" setting was said in differents FAQ to improve battery |
michael the mage
Joined: May 10, 2005
Posts: > 500
From: U.S. of A.
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Exactly, to save battery! I have it set to CS and ONLY WHEN I GO TO INTERNET the GRSP kicks in and connects. When done, the GPRS detached automatically, saving battery.
[addsig] |
jonat8
Joined: Aug 10, 2003
Posts: 78
From: Norwich, United Kingdom
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Another benefit of that, as well as battery life, is that the GPRS triangle above the signal bar only goes blue when GPRS is active, this is useful for the more paranoid among us who wonder if we are running up a bill of £££s when surfing using WiFi, because the globe icon appears on both types of connection... it was set like that by default on my phone! |
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Posted: 2007-04-23 11:20
