通話中 -- 有 WiFi -- 有 EDGE (AT&T)
通話中 -- 有 WiFi -- 無 EDGE (AT&T)
通話中 -- 無 WiFi -- 有 EDGE (AT&T)
通話中 -- 無 WiFi -- 無 EDGE (AT&T)
非通話中
非通話中-- 有 WiFi -- 有 EDGE (AT&T)
非通話中-- 有 WiFi -- 無 EDGE (AT&T)
非通話中-- 無 WiFi -- 有 EDGE (AT&T)
非通話中-- 無 WiFi -- 無 EDGE (AT&T)
" 在非wi-fi區域,你接聽電話過程中,你的iPhone等於無法與internet 進行communicate!" 是指哪個 Condition ?
1. 通話中 -- 無 WiFi -- 有 EDGE (AT&T) ?
2. 通話中 -- 無 WiFi -- 無 EDGE (AT&T) ?
如是 2 那不是超級正常 ? :p
1 的話我就不知了 不是 iPhone 我也沒用過這樣的 case :p
[H][H] wrote:
還是不太懂 情況有 ...(恕刪)
哦我似乎明白你的意思了
先問一下
就GSM來講,通話時候就是沒有EDGE的對嗎?
哦原來如此
我原本以為可以啦,可以一邊通話一邊online看資料
原本是如此期許啦~ 所以。。。timed the surprise
Graham21 wrote:
就GSM來講,通話時候就是沒有EDGE的對嗎?
我原本以為可以啦,可以一邊通話一邊online看資料
原本是如此期許啦~ 所以。。。timed the surprise
Not exactly true.
Whether the device is able to utilize GPRS/EDGE data network while performing voice call is depended to the device’s GPRS/EDGE Class and network’s support.
Class A
Can be connected to GPRS service and GSM service (voice, SMS), using both at the same time
Class B
Can be connected to GPRS service and GSM service (voice, SMS), but using only one or the other at a given time. During GSM service (voice call or SMS), GPRS service is suspended, and then resumed automatically after the GSM service (voice call or SMS) has concluded. Most GPRS mobile devices are Class B.
Class C
Are connected to either GPRS service or GSM service (voice, SMS). Must be switched manually between one or the other service.
For example, N80 is EDGE Class B Multi-Class up to Class 11, with DTM Support.
Technically speaking, with DTM (Dynamic synchronous Transfer Mode),
It can do Voice Call on one band (e.g. GSM 850 / 900), while transferring data with EDGE on another (GSM 1800 / 1900)
However, very few device supports DTM, and iPhone does not seem to support.
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