Technically this should work. However, Grand Central's (GC) VM kicks in after 4 rings or so, and it cannot be changed. So, most of the calls may roll to GC's VM (Calls forwarded via GC will always fallback to their VM). At least this was my experience on a recent trip to the Caribbean when I forwarded my mobile to GC, then GC to my international sim card with a US number (Yackie mobile)
US Mobile->GC->yackie mobile
This will create more lags and just about all calls will be routed to the GC VM.
US mobile number > GrandCentral > Skype/Vonage > International mobile
Originally Posted by
GUWonder
While GrandCentral has issues, wouldn't it work to forward the US cell calls to the GrandCentral phone number and fool around with the GrandCentral settings while pointing those calls to another number that is set to forward to a separate international roaming cell phone number?
US mobile number > GrandCentral > Skype/Vonage > International mobile number is an example of what I'm talking about.
I do what I can to avoid roaming on a SIM card from a call-receiver-pays(-too) country while in another country.