I Need an Alternative to Google Voice

Can someone recommend a VOIP service that operates similarly to Google Voice?

I want to get a virtual phone number that can auto-forward all incoming calls to my cell phone. In addition I would like to be able to make outgoing calls (from my smart phone or computer) that will display that phone number in the caller ID of anyone receiving that outgoing call.

Also, it's critical that this number be able to receive text messages and forward those to my smartphone or email inbox. Will need to send text messages from my smart phone that display as coming from this virtual number.

I see there are companies like Grasshopper.com that offer this functionality, but they all seem to charge between $12 and $20 per month. Would prefer a cheaper alternative. Or free would be even better, but ultimately I realize I will probably have to pay something.

Thanks in advance.