[asterisk-dev] E&M + Dial Tone?

[Bart Fisher]

I ask on the user's newsgroup and got "dead air" - So trying here:

We need dial tone option for e&m outbound dialing.

Background:
We have T1's that come from both MCI and Global Crossing as channelized (24
Ports per T) with inband (DTMF) delivery of ANI and DNIS (format = 
*DNIS*ANI*).

My old equipment was set for D4,AMI, SF and Wink Start and so is Asterisk. 
I've moved
these T's to Asterisk TE410P and inbound calls are arriving to external 
voice mail system
correctly (Dialogic D240-SC-T1) - There is no issues so far. So, you can 
imagine Asterisk sits
between Telco and External VMS.

I guess you realize these are not PRI T1's - but old DS1

However, when the external voice mail system begins to dial out, it grabs
a port waits for the Wink, but it expects dial tone after the Wink from 
Telco -
so it just sits there waiting until the time-out and gives up.

My thinking is there should be an E&M singnalling method that provides dial 
tone. -

Any clues?

I could not find a good description of the different types and their
operation. For example, provides e&m and dial tone as a method.

=====================
Current 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        ; <= seems like my only choice (e&m)

# Span 2: TE4/0/2 "TE410P (PCI) Card 0 Span 2" AMI/D4 RED
span=2,0,0,d4,ami
e&m=25-48       ; <= seems like my only choice (e&m)

Current Zapata.conf:

; Span 1: TE4/0/1 "TE410P (PCI) Card 0 Span 1"
; This is attached to CUST 3 VMS System
;
signalling =>em_w ; <= might be wrong choice (see below for others)
context=default
group = 1
channel => 1-24

; Span 2: TE4/0/3 "TE410P (PCI) Card 0 Span 3"
; This T1 is WorldCom Local 714 DID's
;
signalling =>em_w ; <= might be wrong choice (see below for others)
context=from-did
group = 3
channel => 25-48

=============================
I've searched for alternatives signalling types and found these.  But
nothing was found as to exactly what happens during inbound or outbound 
calls
- (is dial tone provided or not)

em_w: E & M Wink Start
featd: Feature Group D (The fake, Adtran style, DTMF)
featdmf_ta: Feature Group D (The real thing, MF (domestic, US)) through
Tandem Access point
fgccama Feature Group C-CAMA (DP DNIS, MF ANI)
fgccamamf Feature Group C-CAMA MF (MF DNIS, MF ANI)
featdmf: Feature Group D (The real thing, MF (domestic, US))
featb: Feature Group B (MF (domestic, US))
sf: SF (Inband Tone) Signalling
sf_w: SF Wink
sf_featd: SF Feature Group D (The fake, Adtran style, DTMF)
sf_featdmf: SF Feature Group D (The real thing, MF (domestic, US))
sf_featb: SF Feature Group B (MF (domestic, US))

Any clues for me?

TIA

Bart