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bbob · 04-12-2009, 10:27

Don't think there is really that much difference in voip or through pstn. It's all about compression and even pstn will use compression sometimes.

I use my voipcallback to the sim or calls are forwared by voip to the sim. I don't have any quality issues. the gsm codec itself is not the highest quality but good enough so I really don't see any point if a call to or from a gsm is made through voip or not.

	(#6)
bbob (Offline) Senior Member Prepaid Expert Posts: 499 Join Date: 20 Feb 2007 Country:	04-12-2009, 10:27 Don't think there is really that much difference in voip or through pstn. It's all about compression and even pstn will use compression sometimes. I use my voipcallback to the sim or calls are forwared by voip to the sim. I don't have any quality issues. the gsm codec itself is not the highest quality but good enough so I really don't see any point if a call to or from a gsm is made through voip or not.