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Re: WAP - What A Problem...
At 07:12 PM 6/30/00 +0200, Anthony Atkielski wrote: Why use SMS instead of just voice? Has anyone considered the ergonomics of WAP? Even if it works perfectly, how many people are willing to work on a screen smaller than a credit card? How many people are capable of touch-typing on a keyboard with only ten soft keys that must be pressed in various arcane combinations for almost ever letter? It just doesn't make intuitive sense. On the face of it, I would have tended to agree. But I have been astonished by the degree of adoption of SMS (in UK) by school children who purchase their own pre-pay mobile phones (for about $50-100). SMS may be awkward, but the per-use cost is is very low, and totally predictable. And the users in this case soon learn to handle the "inadequate" user interface. But it doesn't stop there: when I travel abroad, my daughter sends SMS messages to my mobile phone, and I respond in kind. And wherever I am in the world, the cost does not very. And even I am finding the user interface manageable for simple messages. Because it's messaging, not isochronous, SMS can ride "low-grade" bandwidth that voice cannot use. I sometimes think the advantages of messaging are lost among those who are used to continuous network connections. #g Graham Klyne ([EMAIL PROTECTED])
Re: Seeking Open Mobile Messaging Protocols -- Efficient E-Mail
In response to a recent request for information about efficient messaging
protocols, may I refer you to a proposal that has been offered as a
candidate for IMPP, but which is built on a relay model capable of matching
and enhancing SMTP transfer semantics:
http://search.ietf.org/internet-drafts/draft-mrose-imxp-core-00.txt
http://search.ietf.org/internet-drafts/draft-mrose-imxp-access-00.txt
http://search.ietf.org/internet-drafts/draft-mrose-blocks-protocol-04.txt
#g
--
At 05:33 AM 6/26/00 +, Mohsen BANAN-Public wrote:
Existing SMTP/IMAP/TCP technology is not well suited for
mobile and wireless environments where bandwidth and
capacity are always limited and precious.
More efficient protocols are needed to address the new
reality of mobile and wireless networks. I am seeking
open protocols which are better suited to address the
requirements of mobile and wireless networks.
The key functional requirements for the protocols that
I am seeking are:
- Provide for the submission and delivery of short
(4 kilobytes or less) Internet e-mail messages
with the same level of functionality (or higher)
that the existing SMTP protocols provide.
- Provide the same (or better) level of reliability
and security that the existing SMTP protocols provide.
- Make reasonable trade-offs between specification complexity,
implementation complexity, extendibility, scalability and efficiency.
- Provide the required efficiency characteristics. These include:
minimizing the number of transmissions, minimizing the number of
bytes transmitted, minimizing the latency of message
submission and delivery.
The protocols I seek are intended to be used primarily
in IP based wide area wireless environments (e.g., CDPD)
The devices used have a wide variety of form factors and
platforms.
Timely delivery ("push") to unconscious carry devices
similar to the two-way paging model is also an important
goal.
The origin of the open protocols that I am seeking can
be any individual, company, or organization, provided:
- The protocols are intended to be patent-free and are
declared as such.
- They are published as stable specifications and are
readily and permanently available to anyone.
RFC publication is the prefered method.
- Participation in the maintenance and enhancement of the protocols
is public, open and free. The maintenance process must
also be such as to maintain the patent-free nature of the protocols.
The absence of a set of open protocols satisfying these requirements
has led to the adoption of patented protocols such as WAP, and the
appearance of closed systems such as BlackBerry (tm).
I consider the availability of open alternatives in this
area to be of benefit to the consumer and the industry.
If you are aware of any protocol specifications which
address the above mentioned requirements please send me
--
Mohsen BANAN mailto:[EMAIL PROTECTED]
--
a note. I will compile the results, then make publicly available.
Please feel free to distribute this request wherever appropriate.
Thank you.
Mohsen BANAN
-
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is a sublist of [EMAIL PROTECTED] Not all messages are passed.
Decisions on what to pass are made solely by Harald Alvestrand.
Graham Klyne
([EMAIL PROTECTED])
RE: WAP - What A Problem...
But I have been astonished by the degree of adoption of SMS (in UK) by school children who purchase their own pre-pay mobile phones (for about $50-100). SMS may be awkward, but the per-use cost is is very low, and totally predictable. And the users in this case soon learn to handle the "inadequate" user interface. I have to agree, my daughter can type at astonishing speed on her cell phone - it is a good way for me to keep in touch with her P. This message has been checked for all known viruses, by Star Internet, delivered through the MessageLabs Virus Control Centre. For further information visit: http://www.star.net.uk/stats.asp
