OK, so I had some time between watching the cricket (IPL). Pom here, I know an Aussie will understand
So here's my attempt at a dial plan for you:
Physical Interfaces > PHONE Port > PrimaryLine: SP1 Service
Voice Service > Auto Attendant > PrimaryLine: SP1 Service
Service Providers > ITSP Profile A > General > DigitMap:
(<**2>775S4|<**2>x.8888888|<02>[2-9]xxxxxxx|0[2-9]xxxxxxxx|0011xx.|1[258]1|000|18xxx.|13xxx.)
Service Providers > ITSP Profile B > General > DigitMap:
(<02>[2-9]xxxxxxx|0[2-9]xxxxxxxx|0011xx.|775S4|000|18xxx.|13xxx.)
Physical Interfaces > PHONE Port > DigitMap:
([1-9]x?*(Mpli)|[1-9]S9|[1-9][0-9]S9|000|**0|***|#|**1(Msp1)|**2(Msp2)|**8(Mli)|**9(Mpp)|(Mpli))
Physical Interfaces > PHONE Port > OutboundCallRoute:
{([1-9]x?*(Mpli)):pp},{(<#:>|000):li},{**0:aa},{***:aa2},{(<**1:>(Msp1)):sp1},{(<**2:>(Msp2)):sp2},{(<**8:>(Mli)):li},{(<**9:>(Mpp)):pp},{(Mpli):pli}
Notes:
18xxx. & 13xxx. lengthened to prevent clashes with three-digit numbers.
<**2>775S4 This uses your Primary Line to redirect 775 to sp2 by prepending **2 to 775. The S4 adds a four second delay to prevent clashing with someone dialling a longer number that starts 775. If no other numbers start 775, then the S4 is not needed.
<**2>x.8888888 To be honest, I did not really understand what this is for, but it redirects to sp2 the same way as 775.
000 goes directly to PSTN.
Using the Primary Line to do the redirecting means that the Phone Port DigitMap and OutboundCallRoutes can be left at default, except for the 911 to 000 change in your case. If you wish to dial 000 via sp1 or sp2 you will need to dial **1000 or **2000. OBi devices to not provide "fail over". If the PSTN line fails, then dialling 000 will result in "no service available" message. Automatic failover can be achieved in some circumstances using trunk groups, but that's way too complex for this post!
In your posts the digit maps etc had a lot of spaces in them. They are best avoided as they can cause problems.
Let me know how it goes. Feel free to question or complain if my dial plan does not work