[OSL | CCIE_Voice] America numbering plan , does pstn pass 1 or not ?

2009-01-19 Thread jeremy co 
Hi,


I'm little confused with US numbering plan, since I'm no living in us.


Does pstn pass 1 for national calls?

Say site a E.164 number is 5031022xxx
if some on from PSTN location calls toward our site , PSTN will pass it as
1503xxx-  or  503xxx-  ?

I get confused since I came across scenario that requires in IPCC that match
on calling number but number is sth like 1503xxx- . I though 1 would
be eliminated by PSTN.


Please clarify.


Jeremy

Re: [OSL | CCIE_Voice] America numbering plan , does pstn pass 1 or not ?

2009-01-19 Thread Ryan Trauernicht 
the 1 is for LD.  National has nothing to do with it.  Both calls are
national.
7 (or 10 digits) are considered local.

1 (LD) - 312 (Area Code) - 555 (CO Number) - 1212 (DID)

Local - 3125551212
Local - 5551212
LD - 13125551212

Thanks,
Ryan Trauernicht

On Mon, Jan 19, 2009 at 6:41 AM, jeremy co jeremy.coo...@gmail.com wrote:

 Hi,


 I'm little confused with US numbering plan, since I'm no living in us.


 Does pstn pass 1 for national calls?

 Say site a E.164 number is 5031022xxx
 if some on from PSTN location calls toward our site , PSTN will pass it
 as   1503xxx-  or  503xxx-  ?

 I get confused since I came across scenario that requires in IPCC that
 match on calling number but number is sth like 1503xxx- . I though 1
 would be eliminated by PSTN.


 Please clarify.


 Jeremy