I ran into a problem a couple of days ago in Skype where my Skypeout account stopped working. It seems to be working again now so I thought I'd share my experience for anyone else who might run into the issue. I didn't come across a lot of existing documentation in search of a fix.

My initial problem: I have a Skype subscription plan that allows me "unlimited" Skypeout calls to selected countries with monthly fees. It's worked well enough over Wi-Fi and 3G until the other day. The Skypeout on the N900 would call and I could hear my contact but they could not hear me. The Skypeout calls worked fine though the Skype client on the PC.

These are the troubleshooting steps I performed (listed by easiest to hardest fix IMHO).

Reboot! (easy enough)

Recreate the .Skype profile (Started working for me after doing these steps)
- Go offline in your Skype profile and remove it (Settings->VoIP and IM accounts->"your account"->Delete)
- Log in with X Terminal
- type "mv .Skype Skype-backup"
- Set up Skype again (Settings->VoIP and IM accounts->New)
- Reboot!

Sign into another Skype account and then back into your original account (Other posts mentioned this fixed their Skype issues)

Reflash the firmware. I tried this initally because I thought a part of Skype may have gotten corrupted. I would suggest trying the steps above first and reflashing as a last resort.

Troubleshooting tip: Don't forget you can use the Echo / Sound Test Service if you think there may be an issue with your connection or your microphone! If it's not already in your contact list, add a contact with the Skype field "echo123".

Another issue I've had that I haven't seen anything about is that my Skype calls sound great sometimes and sound frustratingly stuttery at other times. If anyone has any ideas, please share! Thanks!