So the only difference with PRI is caller ID? What I am trying to
determine is if the PRI has enough advantages to give up the voice
channel used by the D channel. For what I am doing, caller ID is not
necessarily that important for my application.
Is a non-PRI T1 significantly harder to configure with Asterisk?
Can Asterisk choose the context based upon the CallerID with a PRI?
Thanks for your reply
BEN
Michael D Schelin wrote:
Go T1 with PRI signaling. Farming and line coding is for all T1's. We
use ESF (extended super frame) B8ZS ( I forget B8ZS stands for but
it's a newer line coding) . If you have it avaible to you, Signaling
type should be PRI. The rest of your numbers 4-7 are in the PRI
signaling. No sound differences in digital. Caller ID is very
important. PRI signaling is very easy to set up with Asterisk.
Ben Brown wrote:
Preparing to order a T1 (not PRI) for our asterisk box. The telco has
offered me several options that I am not sure of. Which would be best
for use with asterisk? The box has the Digium card in it, BTW.
1. Dial Tone - No, Yes - Precise, Yes - SCC
2. Framing - SF, ESF
3. Line Coding - AMI, B8ZS
4. Signaling Type - Ground Start, E&M, Loop Start w/Ring, Loop Start
w/o Ring
5. Pulse Mode - DTMF, MF
6. Outpulse Start - Wink, Immediate, Seizure
7. If Seizure then - Origination, Digit Collection.
On a related note, am I correct that the only major differences with
a PRI are faster call setup time and the caller ID information on the
D channel? Are there any significant differences in sound quality
with a PRI? Any other advantages to giving up the extra channel
seeing as the cller ID is not really a selling point for me?
Thanks
BEN
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