Setup: Obi110 with PSTN connected to Line port and Google Voice on SP1. Default dial-out is set to Line.
Problem: Outgoing toll-free calls on the Line port were being misdialed. I would enter a number correctly on the phone, but the call would complete to a different number. (Correct number entry verified by checking the redial history on the phone.)
If I bypassed the Obi and connected the PSTN directly to my phone, it dialed correctly.
Solution: Go to Expert configuration > LINE and change the following settings:
DialDelay: 800 (default = 500)
DialDigitOnTime: 300 (default = 200)
DialDigitOffTime: 300 (default = 200)
These settings configure the Obi to wait a little longer to start dialing, and to dial a bit more slowly.
This seems to have worked. If you're having a problem with misdialed landline calls, try the settings above.
Regards,
-Robdog03