If you want to configure Vestalink on SP1 and then configure additional port(s) for another VoIP service on any OBi device I recommend using "OBiTALK".
Start by resetting the OBi device to factory default then use OBiTALK to configure SP1 for Vestalink on SP1 by selecting the Generic Service option. Use your Vestalink Sip Credentials from the Vestalink .com "Softphone/BYOD" section.
I have setup a OBi202, a OBi110 and a OBi100 using OBiTalk for various combinations of Vestalink,
voip.ms and for Google Voice without any issues. I have made configuration changes several times testing different service providers and as long as I reset the OBi device to factory default before provisioning SP1, I haven't had any issues.
I did try using the Vestalink OBi Setup Tool once but was not successful setting up any additional services on the other Service Provider Port(s).