Hi:
It's unclear from your post, what, exactly, caused this, and what you did when you said you "logged into my google voice account to delete forward to calls to my gtalk...".
Some terminology:
Google
Voice is the inbound call forwarding service. Inbound calls to your Google Voice number are forwarded to whatever forwarding destinations (telephone numbers or Chat) you configure here:
https://www.google.com/voice#phones Google
Chat was the VoIP (Internet calling) system used by Google Voice for making and receiving calls on computers, including OBi devices, via the XMPP protocol. Google now considers Chat obsolete, and it will eventually go away. For now, it's being left in place, mainly to support OBi devices. Adding Chat as a forwarding destination to the page above is what enables OBi use.
Independent of the destinations on the GV settings page, inbound GV calls will also forward to any Hangouts clients on any computer or mobile device, if that client is logged on and you've enabled ringing on inbound calls for that client. Hangouts is now the current, supported platform for VoIP calling.
There is no "gtalk", and the former standalone Google
Talk standalone program was shut down.
Now: you can still revert to the old Chat system long enough to re-establish the Google Voice --> XMPP forwarding setup. Log into your Gmail account on a web browser other than Google Chrome (Firefox, MS IE or Safari), and, when prompted, install the voice and video chat plugin. If you installed it, and it repeatedly asks you to install it again, it's because plugins are considered obsolete technology with security exposures, and all browsers other than MS IE now block plugins by default. You'll need to give the browser permission ("activate" or "allow") the plugin to run.
Then, click your chat avatar on the left side of the Gmail web page, to get to Chat settings, and click the small link that says "Revert to old Chat", if present. If it says "Try the new Hangouts", don't click it at this time. Make your one outbound call and it will re-add Chat to GV.
See my complete setup instructions here:
http://www.obitalk.com/forum/index.php?topic=8560.msg56460#msg56460