E400P as first zaptel device (from Florian Overkamp in NL)

/etc/zaptel.conf:
span=1,1,0,ccs,hdb3,crc4 # Loopback NET
span=2,0,0,ccs,hdb3 # Versatel
span=3,0,0,ccs,hdb3,crc4
span=4,0,0,ccs,hdb3,crc4 # Loopback CPE
# Span 1
bchan=1-15
dchan=16
bchan=17-31
# Span 2
bchan=32-46
dchan=47
bchan=48-62
# Span 3
bchan=63-77
dchan=78
bchan=79-93
# Span 4
bchan=94-108
dchan=109
bchan=110-124

alaw=1-124

loadzone = nl
defaultzone=nl

/etc/asterisk/zapata.conf:
[channels]
context=inbound
switchtype=euroisdn
signalling=pri_cpe
rxwink=300 ; Atlas seems to use long (250ms) winks
usecallerid=yes
hidecallerid=no
callwaiting=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
echocancel=yes
rxgain=0.0
txgain=0.0
immediate=yes
; Channels inherit configuration above them
; Span 1
group=1
signalling=pri_net
channel => 1-15
channel => 17-31

; Span 2
group=2
signalling=pri_cpe
channel => 32-46
channel => 48-62

; Span 3
group=3
signalling=pri_cpe
channel => 63-77
channel => 79-93

; Span 4
group=4
signalling=pri_cpe
channel => 94-108
channel => 110-124