For being able to switch radio interfaces you have to make sure what a
platform can support. These are the following possibilities

1. only one radio at the same time. Browsing, instant messaging type
of data connection can be supported. User is not necessarily  impacted
by switching the radio

2. only one data connection but multiple radios can be up at the same
time. Radios can be switched with keeping a Voip connection alive but
with a small interruption (break before make, which means that the
Voip connection is interrupted for a short time)

3. multiple radios at the same time. With usage of protocols like SCTP
and mobile IP connections can be seamlessly switched (make before
break approach).

Android right now allows only one radio at the same time. But it is
possible to modify the platform to support 2. and 3.

--
Roman Baumgaertner
Sr. SW Engineer-OSDC
·T· · ·Mobile· stick together
The views, opinions and statements in this email are those of the
author solely in their individual capacity, and do not necessarily
represent those of T-Mobile USA, Inc.

On Aug 15, 9:04 pm, Kartick Vaddadi <[email protected]> wrote:
> Don't you need something like SCTP to transparently failover a
> connection from interface to another? I thought TCP does't support
> that.
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
-~----------~----~----~----~------~----~------~--~---

Reply via email to