Dialing 1 for Long Distance

[phannah]

In what situations do you need to dial a 1 for long distance, and in which situations can you skip this part?

In my experience, mobile phones are indifferent to dialing a one, but POTS lines demand it. I've seen a mix on PBX's, but I'll assume it's added based on the numbering plan programmed on the switch.

My thought is that if the Long distance carrier is the same as the local carrier, it shouldn't matter? Is this a correct assumption, or does this go deeper than it looks?

I tried to find some information regarding it, but I couldn't find a source that got into the specifics.

 

[johnpoole]

as jim eluded to, it's easy to get it right, sometimes the only hard part is finding out what the other end wants. all the big switches have more options then you can count. the switchman on the far end knows what he needs to see, but usually your taking back and forth through service or change request. when i changed carriers (ld) recently, i didn't even build my routes or d's, until the switchman got me on the phone for testing, i asked his rls, and translation requirements, gave him mine. ten minutes later, we had tested and signed it off.. neither of us had a single change. if your tieing to a switch not on your options list, qsig is almost always a common protocol. cisco call manager to nortel, with name and msg lamps, voip to voip, through a tdm switch, all works very clean with qsig

john poole
bellsouth business
columbia,sc