I'm trying to follow the same advice for my Future-Nine line.
Under Service Providers -> ITSP Profile X -> General -> DigitMap I originally had:
(*xx.|911|1xxxxxxxxxx|<1>[2-9]xxxxxxxxx|[2-9]xxxxxx|011xx.|xx.|(Mipd)|[^*#]@@.)
Following the idea above, I add <1443> to make:
(*xx.|911|1xxxxxxxxxx|<1>[2-9]xxxxxxxxx|<1443>[2-9]xxxxxx|011xx.|xx.|(Mipd)|[^*#]@@.)
After I submit my changes, the string is changed back to the original form and <1443> is deleted. I've tried this a few times.
What gives?
Thanks,
Michael