Below is a very basic config, which should get you started. Note that I have changed the emergency numbers from 911 to 999|112|101|111. These will route directly out of the Line Port to PSTN.
The digit maps would route calls more quickly if you can give more exact information. For instance, do all 415 numbers have a format of ten digits? If so, then change where I have used 415xx.S3 to 415xxxxxxx – the purpose of the digit maps is always to try and get the closest to an exact match of the number format as possible.
Physical Interfaces > PHONE Port > PrimaryLine: PSTN Line
Voice Service > Auto Attendant > PrimaryLine: PSTN Line
Physical Interfaces > PHONE Port > DigitMap:
([1-9]x?*(Mpli)|[1-9]|[1-9][0-9]|999|112|101|111|**0|***|#|**1(Msp1)|**2(Msp2)|**8(Mli)|**9(Mpp)|(Mpli))
Physical Interfaces > PHONE Port > OutboundCallRoute:
{([1-9]x?*(Mpli)):pp},{(<#:>|999|112|101|111):li},{**0:aa},{***:aa2},{(<**1:>(Msp1)):sp1},{(<**2:>(Msp2)):sp2},{(<**8:>(Mli)):li},{(<**9:>(Mpp)):pp},{(Mpli):pli}
Physical Interfaces > LINE Port > DigitMap:
((<**1>(Msp1))|(<**2>(Msp2))|0[4568]xx.S3|0[123]xxxxxxxxx|07[1-9]xxxxxxxx|116xxx|xx.S3)
Service Providers > ITSP Profile A > General > DigitMap:
(415xx.S3)
Service Providers > ITSP Profile B > General > DigitMap:
(917xx.S3)
Do you wish to include local dialling via the Line Port? If so you need to specify the number range and is the format 6,7 or 8 digits long?
You would benefit by making some basic changes to your other Line Port settings to match the OBi110 with UK PSTN line characteristics. Start with these:
Physical Interfaces > LINE Port > LINE Port > RingDelay: 0
Physical Interfaces > LINE Port > LINE Port > RingProfile: B
Physical Interfaces > LINE Port > LINE Port > DialDigitOnTime: 80
Physical Interfaces > LINE Port > LINE Port > DialDigitOffTime: 80
Physical Interfaces > LINE Port > PSTN Disconnect Detection > DetectFarEndLongSilence: uncheck
Physical Interfaces > LINE Port > Port Settings > ACImpedance: 370+(620||310nF)
Physical Interfaces > LINE Port > Port Settings > CallerIDDetectMethod: FSK(V.23)
Also, Phone Port settings:
Physical Interfaces > PHONE Port > Ringer > RingFrequency: 25
Physical Interfaces > PHONE Port > Port Settings > Impedance: 320+(1050||230nF)
Physical Interfaces > PHONE Port > Port Settings > CallerIDMethod: FSK(V.23)
Physical Interfaces > PHONE Port > Port Settings > CallerIDTrigger: Before First Ring
There are others, but that's maybe enough for now!
Make changes via the OBi Expert Configuration pages. From your OBi Dashboard, click on your OBi number and follow the prompts to get there. To change a value uncheck both boxes to the right of the value and leave them unchecked. After changing the values on one page, press submit at the bottom of the page and wait a few minutes for the OBi to reboot. Then move on to another page if required.