At first, VoLTE will be used to deliver "Rich Communications Services" (which look like something similar to what Voice over IP/Video over IP outfits offer today) rather than completely replacing narrowband voice. It will be awhile before Verizon is willing to commit to that, due in part to LTE outages in late 2011.
On the flip side is MetroPC, which has pushed VoLTE as hard as it could.
Then there's Sprint, which will stick to voice over 1x for the foreseeable future, but routes Direct Connect over IP. Sprint's latest DC incarnation seems quite similar to one facet of RCS over LTE.
Other than the stretch on Bothell Everett hwy, most only last for a few moments. The roaming by QFC was on 124th, right at the QFC. I was sitting at the light this morning and noticed the phone was roaming on b66. I think I was back on Sprint by the time I hit the freeway. Just interesting seeing these things happening that I haven't noticed previously.
Interesting as Sprint has a site on the Motel 6 right there...
That’s also interesting considering Sprint covers 527 with LTE pretty well...
Handoff and roaming parameters/thresholds are probably still be worked out. Good thing T-Mobile roaming counts as on-network usage.