Phone Signiling

[angel.batista]

Hi guys,

I`m studying VoIP and I have a question:

What is the difference between a dial tone signal and Loop Start Signal?

Thanks.

[Brandon Buffin]

Loop Start is supervisory signaling that indicates on-hook and off-hook conditions. Dial tone signal is a call progress tone that indicates the telephone company is ready to receive digits. Please see the following link for confirmation and a more in-depth discussion.

http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800a6210.shtml

Hope this helps. If so, please rate the post.

Thanks,

Brandon

[angel.batista]

Hi Brandon,

Thanks for your help, this document was very helpfull.

[Brandon Buffin]

If you found the information helpful, would you mind to rate the post?

Thanks,

Brandon