Dynamic wavelength-rate CBR services will require an optical control plane
that supports fast provisioning and WDM transmission systems and cross-connects
that can appropriately meet transient, power, and other optical requirements or, if
not possible, cleverly preprovisioned O-E-O methods.
Voice is expected to migrate to VoIP. We note that this migration has been
forecast more aggressively in the past, yet has defied predictions. However, despite
the economic analysis or pref erence of carriers and predilection of many customers
against change, equipment to feed the circuit-switched layer is being capped by
many equipment suppliers and so its lifetime is very limited.
13.3.3 “Killer Apps”
What sorts of future applications will require massive link ...