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ira at extrasensory.com
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 Posted: Fri Mar 21, 2008 12:43 pm Post subject: [asterisk-users] Hardphone SIP phone costs |
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At 09:27 AM 3/21/2008, you wrote:
| Quote: | If you're on call using SIP/WiFi, it's up to SIP server to dial a
new call to your mobile number and blind transfert previous call to it.
Maybe some dual band phones are able to automatically accept some
incoming GSM calls, put them in 3-way conference (of some kind) and
wait for SIP server to end WiFi call without asking anything to user.
Parts of this puzzle are here but integration should be rather hard.
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T-mobile has a service in the USA for a few of their phones that will
seamlessly move between WIFI and GSM. You pay based on where the call
starts, if it starts GSM you pay for the minutes, if it starts WIFI,
the call does not count against your minutes. But it's proprietary
and costs $10/month.
Ira |
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norman at myasd.com
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| Posted: Sat Mar 22, 2008 12:58 pm Post subject: [asterisk-users] Hardphone SIP phone costs |
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On Mar 21, 2008, at 11:48 AM, asterisk-users-request at lists.digium.com
wrote:
| Quote: | I'm getting the impression that the telcos in the US are basically
shafting you because of the monopoly they have. More intersted in
keeping
themselves happy than their customers. I think it's nice I have a
choice
of 5 major mobile phone carriers in the UK, and well over 100 ISPs for
broadband via the BT Wholesale network.
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That's nearly always the case in the US. 50 years ago, it was great
since we had excellent and widespread service, but now they just
aren't keeping up with technology. The recording industry is another
similar monopoly.
| Quote: | | Quote: | A fun test is to call a landline from your cell in the same room and
note now long the delay is. I find it long enough to interfere with
conversations, people talking over each other (especially when
both are
on cells from different carriers.)
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There is a delay - but I've never really noticed it unless I play
tricks
on the network like that. It's certianly nothing like making a call to
Austrailia!
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Never called Australia, but I've found cell-to-cell delays enough to
interfere with normal conversations.
| Quote: | Don't rely on the carriers to provide you anything - there are
plenty of
phones on the market which do SIP now - most modern Nokias do. I
use an
E90 Communicator, but the E95 is popular too, so I'm experimenting
with
using my mobile as my "one" phone, via Wi-Fi/SIP when I'm in the
home/office and GSM/3G when out and about. It's not perfect yet, but
getting there.
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Then you need to pay for the handset yourself without discount. Of
late, they refuse to discount their rate or shorten the term if you
provide your own handset.
| Quote: | (And 10:1 gives you a SIP service on the iPhone that's locked into
their
own service 
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Since PJSIP is being ported, and I am a registered iPhone developer,
I can assure you, I won't have a locked in SIP client for the iPhone. 
Norman Franke
ASD, Inc.
www.myasd.com |
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