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Jul
1
awarded  Notable Question
Jun
24
asked Is it possible to detect which frequency band the iPhone is using
Jun
24
comment How can i get delivery confirmation for sent sms?
@user23122 NOTE I did not say it doesn't happen, merely that it is not supported by standard GSM/3GPP standards. Vodafone in Australia, for instance, was incapable of providing confirmation of delivery to other networks because these networks did not use the non-standard signalling employed by Vodafone. Indeed Australia had GSM <=> CDMA SMS which certainly didn't support it. In fact most internetwork SMS is transmitted by IP or X25 networks not CCS.
Jun
9
awarded  Famous Question
Jun
3
accepted GPS Tracklog from iPhone
Jun
3
comment GPS Tracklog from iPhone
Thanks to both respondents. Both apps looked OK; I elected to try Motion-X as it seems to be updated recently. No free version, but the $1.29 is not an issue. I gave it its first test and the result looks good.
Jun
1
comment How to check which cellular network bands are supported by iPhone
NOTE I am not trying to be critical - this is a complex issue, and NOT capable of a simple answer; I can't answer the OP's question. I have been retired for 12 years, and things may have changed, but I believe Japan uses IS41 stack. International standard phones may work, but only Apple and the network operators can answer, and Apple are not particularly transparent on these matters.
Jun
1
comment How to check which cellular network bands are supported by iPhone
The other factor is the band used (there are at leas 5 in use with more ready for deployment). The US does not use the 900/1800 used elsewhere (allocated to military) and commonly uses 1900 (reserved in most parts of the world). Different network operators order different configurations from Apple (and others) to meet local regulations and networks. Most also order phones which are SIM-locked to their network. In general unlocked phones bought from Apple are more likely to work, but even here there are differences due to different countries regulations.
Jun
1
comment How to check which cellular network bands are supported by iPhone
In fact this article is wrong. (I was the network planner for the first CDMA network in Australia, and also the first 3G network). Most current phones on sale on Europe (including iPhone) support the 3GPP signalling stack which is based on the GSM stack. 3G phones use a CDMA wireless interface, but also support GSM (TDMA) as a legacy. Many US networks use the 3GPP2 standard, which also has a CDMA wireless interface, but uses the IS41 signalling stack, and support IS41C/D as legacy. Probably the majority of US networks are 3GPP and compatible.
May
29
asked GPS Tracklog from iPhone
May
26
awarded  Notable Question
May
21
awarded  Popular Question
May
17
revised set up iCloud Family Sharing
Account details
May
16
comment set up iCloud Family Sharing
@Buscar웃 yes they are
May
16
asked set up iCloud Family Sharing
May
14
asked How do I select a directory to save files in Pages
May
7
accepted Alternatives for Suggested Routes
May
7
comment Alternatives for Suggested Routes
Thanks. Not very obvious on a busy map.
May
7
asked Alternatives for Suggested Routes
Apr
25
awarded  Autobiographer