Had the hardest time tracking this down and still having the hardest time understanding why it was doing this.
In my Outbound Call Route, I had two recipes:
{(01144345xx.):sp4},{(011xx.):sp2}
but the first one wasn't ever getting executed and I couldn't figure out why.
The PHONE ports specified sp1 as the primary route and in ITSP A (the provider for sp1), I had left this in the digit map:
...|<**2>011xx.|...
I had figured that the Outbound Call Route was controlling where the call was being routed, so I hadn't bothered looking in the Digit Map for anything other than sp2 (ITSP B) and sp4 (ITSP C).
Why was the digit map for sp1 being looked at first by the Obi202 on these calls, and why did it take precedence over the Outbound Call Route?
Once that was deleted, everything works as expected.