Whitelist & Blacklist
For SIP trunking, need to allow destination codes but not all codes needs be allowed for cost.
For example need to allow +44 but block +448 and +449. Is it possible to create 2 LRT files, LRT_WHITE, LRT_BLOCK, and use multistage policy in local-policy.
First match number against Black list if found, drop the call with 480 error, if not found look in White_LRT, if found send it to carrier else drop.
Your suggestions are highly appreciated
Thanks
J