How to enable call forwarding when not on same wifi?

[cellulartalk]

I have a work iPhone and a personal iPhone, I sign into the same Apple ID. If someone calls me when I'm on the same wifi they both ring, and when I get text messages on both phones even when I'm not on wifi. Is it possible to have both phones ring if I'm *NOT* on the same wifi? This would enable...

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Courtesy of WestNet Wireless
www.westnet.ca