How to write dialplan for multiple PSTN PRI Lines?

Hi , We are having multiple PRI lines to which we want to create a dialplan so that if some one dial any one of those multiple landline numbers it should be redirected to one single PRI Line . Please help me to write a dialplan for multiple lines by providing any link or guide .

Put them all in the same context (which will happen if you don’t try to do somethinhg else). Define an s extension for that context. Make it Dial () the required outgoing line.

This is all very basic stuff.