how to callforwarding on pap2-na?

Hello, I need to call forwarding from one provider to another provider on my pap2-na, that I do not need always to unplug line one and then to plugin line two on pap2, so I would like to forward all of my calls from all other providers that they be forwardet to a specific provider, and that I can call from line one with the provider who is on line 2. I have only one phone, so please anyone can help me?

From your explanation above, what you want is to convert your PAP2-NA into an SPA-1001. This way, your PAP2-NA will only have one FXS port to function to support two different VoSPs. Please read all posts on this thread to convert your PAP2-NA into an SPA-1001 with an SPA-1001 firmware. Beware that such a modification may brick your PAP2-NA, let alone void its warranty. You have been warned!