Telco man here... Lengthening the site identifier from six to ten digits was an 18 months project impacting 120 applicative systems - not even counting the vast

Telco man here... Lengthening the site identifier from six to ten digits was an 18 months project impacting 120 applicative systems - not even counting the vast grey territories of regexes and office macros. We are powerful, but setting ourselves in motion takes quite a bit of pre-heating !