incoming called-number .T

On incoming DPs T is never considered, as is easy to test.

Being pedantic, one could use ".*", meaning "any digit repeated zero or more times".

However in practice "." works in all the cases where some called number is sent.

You're right.

Thank you.

thank you guys...

now my questions is:

1, to p.bevilacqua, could you please explain more about the difference in terms of dial tone? you mean without the DID command, the caller will hear dial tone before the called phone is answered??

2, this is quote from Cisco CUCM SRND 6.x:

======

Observe the following best practices when configuring H.323 dial peers on a Cisco IOS router:

To ensure that incoming PSTN calls are directly routed to their destination based on the DNIS
information, create a default POTS dial peer with the direct-inward-dial attribute, as follows:

dial-peer voice 999 pots
  incoming called-number .
  direct-inward-dial
  port 1/0:23

=====

I agree that you don't need to specify "port 1/0:23", is there any reason why it's in the best practice sample config?

thanks guys.

Older IOS versions required port to be always present even for digital interface. You can still find it in some documentation.

But is not necessary anymore.