04-01-2008 05:44 PM
I am wondering what exactly is the function of HRT? All I know is it registers your blackberry to your the provider. Is this right?
Also what happends if a BB is already registered to a provider then utilize HRT to register it to another provider will the BB be registered to the 2 providers for BIS?
04-01-2008 05:52 PM
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04-02-2008 12:35 AM
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04-02-2008 10:58 PM
The HRT doesn't do any of the things listed. The BB is a mobile device that relies on the presence of a mobile phone carrier's network being available to contact the BlackBerry infrastructure.
Looking at a fixed computer in your office for example - if you try and connect to www.rim.com you'll need to connect through your work network, your work ISP, some backbone, RIM's ISP and then RIM's servers. After you've done this once your work router will remember the path it took as the most efficient. Next time someone looks up www.rim.com the router will say "ah, I know the quickest route there from here".
With the BlackBerry, which moves around a lot, it needs to know the most efficient route from the device to the mast t the GGSN to the network and on to RIM. If you move to a different mast it has to find a different route. However, when it finds an efficient route it remembers it in the HRT so it doesn't have to work it out again if it finds itself on that mast.
The registration process is completely unrelated to the HRT. Service Books and Services come from something called "Provisioning". Service Books do not control access to the services, they tell the device where to find the servers that will provide the services it requires and how to find them. Access to services is controlled by the infrastructure. If it was controlled by service books everyone would give themselves free services!
04-04-2008 09:32 AM
05-22-2008 12:20 PM
I must respectfully disagree. There is nothing fundamentally wrong with HRT as such and there is hardly anything to get straighter than it is already.
There probably is some reason why the HRT is "hidden" in the "Advanced Options". My own guess why so is that HRT is something what enduser should not bother about, like ARP tables in LAN switches or however else they were exactly called (not working for Cisco nor trying to get their blessed stuff to work I personally could not care less)
And Service Books, in terms of BES Blackberry at least, does not seem to have anything to do with cell/mobile network service options as Martin seems to suggest ("free services"). Service Books tell the Blackberry handheld about what stuff is available on the BES and how to use it.
Sorry for bad English, "..this is not a love song, I don't sing my mother tongue"