HMR test

Hi guys

i asked to my company to send me to Madrid for attend the advanced course and improve my HMR skills.

Waiting for that my customer asked me to elaborate an Hmr and i wanted to share with yousurely you have more experience about that then me ,if it can be correct or not , this is what they want:

they need to modify the TO and Request-URI depending from the FROM header .

The FROM is based on 4 set of numbers , the first three are 3 number long and the fourth is variable longer (Ex. 821-810-182-44798)

the customer request is that they want an HMR that "stores" the third set of numbers from the FROM header ( 182 in example above) and attach in front of the TO and Request-URI headers...in our example for a called number 0678594435 it should be  1820678594435.