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On Mon, 15 Nov 2010, Henry Bremridge wrote:
On Mon, Nov 15, 2010 at 07:36:40AM +0000, tom wrote:On 15/11/10 07:24, Gordon Henderson wrote:Not guaranteed. For example emails to me will never get automatically acknowledged, no matter how you send them. The best you'll be able to find out is the log-file of the last server you have access to. Even if that's the one that connects to my network, then the best you'd get is that it was accepted by the server - you've no ideal what then happens - this is true for most email systems now.Meant to add that MS software I think automatically acknowledge: Outlook used to have a feature that deleted sent emails. On Mutt I find it rather amusing getting emails that say "please delete the previous message sent". All it means is that I read the previous email a bit more carefully.
Ah yes - That's the other hilarity with MS email - they think they can cancel the sending of an email - even after it's been delivered ... Ho ho ho...
As far as I'm aware, it's effectively the (whole) company who's the "local termination centre".Hmm thats what I thought. I might run a few experiments (using Sipgate and some other overseas messaging centres and see what happens)
Do sipgate offer incoming TXT to email? It's something I offer too for numbers I allocate, but it's still classed as "experimental" and TXTs from T-Mobile don't get through - yet. (Sipgate shares one of the upstreams that I use, so I imagine they're using the same service)
You can ask your phone to give you a delivery report, but not all UK networks support this. e.g. Orange charge a penny for it, but O2 doesn't support it at all. (There is a bodge on O2 by prefixing the messages with *0# but it's not perfect) Other mobile networks vary... The reply seems to come when the phone gets the message, not when the user reads the message...This is what I used (Asda / Vodafone). The problem is that I think with most UK networks the reply comes when the receivers telephone company gets the message, not when the user gets the message.
I did some tests this morning - sent a txt (from O2, prefixed with *0#) to wifeys phone on Three. I got the ack. back as soon as it popped up on her phone. Tried turning her phone off, and didn't get the ack until her phone was on. So that's one network combination tested ;-)
However in some other countries, it is certainly when the user gets the message. Hence I was wondering if there was a list of gateways that could be used.
I doubt it. At the end of the day, it will need to be a gateway on the recipients network that does the final push of the message to the network and onto the target phone, and then send the acknowledgement back up the network..
However there is a world of difference between delivered and read.. Like email, best to treat it as 'fire and forget' ...You can of course, if you NEED confirmation, agree some form of handshaking as 'proof' of acknowledgement of the message. Can be just as simple as replying to the message with no addition or pgp'ing a reply etc - can you do that in sms?You can reply with the message body. Failing which if urgent ring.
Outside what the protocol specifies, the actual features are going to be handset dependant. Gordon -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq