[Asterisk-Users] Verizon PRI Setup Problems

[Rich Adamson]

> > pri show span 1
> 
> pri show span 1
> Primary D-channel: 24
> Status: Provisioned, Down, Active

The "Down" indicates the d-chan is down. Call Verizon and have them
activate it. (Its not uncommon for telco's to deactivate the d-chan
when a circuit hasn't been fully turned up. It reduces the number of
alarms they have to deal with.)

> zapata.conf:
> switchtype = national
> context = incoming
> signalling = pri_cpe
> group = 1
> channel => 1-23

In the above for US-based PRI's, you'll want to add:
pridialplan=unknown
echocancel=yes
echotraining=yes ; try =800 if there is still echo with =yes
echocancelwhenbridged=yes

The pridialplan= statement essentially tells the Verizon switch
what type of dialplan you expect to use. 'unknown' allows you to
send 7 digits, 1+ 10 digits, etc. 'national' restricts international
long distance, while 'international' imposes other restrictions.
The added zapata.conf parameters are not the cause for your d-chan
being down, however after that issue is resolved you'll bump into
these parameters.

After the above items are resolved and things are closer to working,
you'll need to know how many digits (if any) Verizon is going to be
sending to you for inbound calls. If you asked them to provide DID
numbers, then the number of digits received will become important
for you to define extensions.conf entries associated with your
context=incoming statement above. If they send you 4 digits, then
use extension.conf test entries like:
[incoming]
include => valid-did
include => invalid-did

[valid-did]
exten => 1234,1,Goto(local-extns,1234,1)
exten => 1235,1,Goto(local-extns,1235,1)

[invalid-did]
exten => _.,1,Answer
exten => _.,2,Wait(1)
exten => _.,3,Playback(the-number-u-dialed)
exten => _.,4,Playback(not-yet-assigned)
exten => _.,5,Wait(2)
exten => _.,6,Hangup

If Verizon is not sending any digits to you on inbound calls, then
for testing simply use something like:
[incoming]
exten => s,1,Wait(1)
exten => s,2,Answer
exten => s,3,whatever-you-want-to-do-with-this-call

You will also want to talk to a Verizon switch tech about how to
handle outbound CallerID. E.g., do you want to send CallerIDNum to
Verizon matching each originating DID number, or, map all outbound
calls to a single CallerIDNum? They will also set a common
CallerIDName for all outbound calls, but probably won't allow you
to send the name to them.

Rich