…anged and may again
…ied and take into account call-forwarding
…rnal caller_id. Check the user's configured caller id against known DIDs assigned to the account. If its not found, look up the account's default caller id and use it. Lacking one of those, use the first in-service number on the phone_numbers doc. Lacking one of those, use a bunch of 0s, because that's what this caller is, a 0.
…ecoding (in migration)
…ngs like 0