voip - route landline phone in elastix -

im colombia, english isn't perfect.

on our campus there several smes offer services. company work has several landlines phone numbers : 6455281 , 6455282 , 6455283 , etc. , grandstream ip phone extension 1201. own console elastix v.2.3 freepbx , phone lines listed above pass through pbx , enter through same trunk . please tell me how route 1 of numbers listed when call number not pass through pbx sound directly grandstream phone?

thank in advance.

i searched information on manuals posted on internet , followed steps solve question:

1. you must have extension created , running.
2. go "inbount routes".
3. on "did number" type desire telephone number route.
4. on "set destination" choose "extensions" select extension list.
5. click on submit.
6. click on "apply changes"