[Asterisk-Users] E&M and Dial tone

[Bart Fisher]

I'm a bit confused about how to handle this.

I have Asterisk sitting in the middle between a Qwest Long Distance T1 
(Voice T1, D4, SF, AMI) and an external voice mail PC using a Dialogic 
D/240SC-T1 card.

The Qwest T1 originally was connected to the Dialogic card directly.  The 
signaling was set to E&M Wink Start because Dialogic used this as its 
default settings, so it just worked without fiddling.

Before Asterisk:

Incoming Qwest calls would wink the Dialogic card and then send DTMF to the 
Dialogic after it winked back.
Outgoing calls from Dialogic would come off-hook, wait for wink. At this 
point Qwest would send dial tone.  The Dialogic has
call supervision and "wait for dial tone" enabled.

With the Asterisk in the middle, Incoming from Qwest are directed to 
Dialogic and are answered correctly.
The problem is when the dialogic card wants to dial out, we only get the 
wink Asterisk - no dial tone.  The dialogic reports this as
a failure and hangs-up

If I remove the Dial Tone Detection option on the Dialogic and add pauses 
before the dial string, all works OK.

My question is how can I emulate the Qwest functionality and provide a dial 
tone after the wink?

TIA Bart

My zaptel.conf:

# Span 1: TE4/0/1 "TE410P (PCI) Card 0 Span 1" AMI/D4 RED
span=1,0,0,d4,ami
e&m=1-24

# Span 2: TE4/0/2 "TE410P (PCI) Card 0 Span 2" AMI/D4 RED
span=2,1,0,d4,ami
e&m=25-48

My zapata.conf

; Span 1: TE4/0/1 "TE410P (PCI) Card 0 Span 1"
; This T1 is attached to in-house VM System
;
signalling =>em_w
context=from-internal
group = 1
channel => 1-24

; Span 2: TE4/0/2 "TE410P (PCI) Card 0 Span 2"
; This T1 is attached to Qwest LD
;
signalling =>em_w
context=from-pstn
group = 2
channel => 25-48