Sorry, I haven't seen this one. Observations made in the following slides overlap with my experiences:
http://web.cs.ucla.edu/~ghtu/Mobicom13-tu-slide.pdf 2016-07-12 19:06 GMT+03:00 Dale R. Worley <[email protected]>: > Volkan Hatem <[email protected]> writes: > > Cellular radio-access-type changes are even more challenging: 3G to 4G > > (vice versa) in theory should be nearly seamless. [...] > > > 2G to 3G (vice versa) is even more difficult as in many cases the radio > > access will be totally lost causing even longer down time. > > Is that because the radio has to be changed from "2G mode" to "3G mode"? > But there is no substantial change between 3G and 4G transmission? > > > But in reality IP connectivity will be lost for seconds before it is > > recovered. > > When you say "lost for seconds", roughly how many seconds? Is it 2, or > 5, ... or 20? > > Dale > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
