On Wed, 8 Dec 2004, Eric Wieling aka ManxPower wrote: > Colin Anderson wrote: > > Some telco's do, some telco's don't. The text "Rarely used for PRI" is IMO a > > location-centric and carrier-centric statement. As another poster suggested, > > PRI's are picky, and some carriers are super-picky so it's always best to > > dot your i's and cross your t's when dealing with PRI. At worst, it will be > > ignored by the switch. > > Actually, the worst that can happen is not being able to dial out the > PRI to numbers that are not "national", "local", or "international".
This is incorrect. The numbers you send must be formatted differently depending on what ton/npi you claim they are in. With "national" (the asterisk default) you can not dial internationally if the switch is set up according to itu specs. Also, a lot of switches will not accept all ton/npi combinations. "Unknown" should really be the default. This allows you to send numbers the way they are dialed on a POTS line, most of the time. As a second option "international" is good since that allows all numbers to be dialed, but you will have to prefix non-intrnational numbers with your country code. In the US the ton/npi seems to be used much less frequently than in the rest of the world. Then again US carriers seem to use isdn as a T1 with a little better setup/teardown. Nothing wrong with that but isdn can be a lot more complex/capable. Peter _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
