[VoIP] DP-compatible ATAs

[Steph Kerman]

Chad Perkins wrote:
> On 29 Dec 2006 at 21:01, Steph Kerman wrote:
>> Asterisk DP outpulsing will not produce authentic sounding DP towards 
>> the caller as was generally heard for DID completions to SXS 
>> Centrex-CUs. While it may not mask it, if the wirespring DP sender 
>> has to be there anyway to produce authentic sounds, the * becomes 
>> dispensible for this purpose. And the W-S senders are infinitely more 
>> fun to watch!
> My assertion is that Asterisk (natively) will behave the same as any 
> modern PBX. If I have a Definity or a Nortel I'm not going to hear 
> anything different as the call is routed through the switch. I do 
> understand, and agree that if everything is on analog 2W copper and 
> "historic" sound is important, Asterisk does not contribute to that end.
That depends.  What is the propagation delay through an * switch?

Steph