This is an example that assumes the following:
You are in US, New York Timezone. You are using all 4 FXO ports. You want the gateway to auto send the calls to a hunt group (300) from 8:30am-5:00pm during the work week but want them to go to your Auto Attendant (100) at all other times.
The Auto DST-RULES are good through Fall 2016. The example below is marked up for you to be able to adapt it your your environment and is taken from a working example at one of our customer sites.
#----------------------------------------------------------------#
# #
# SN4524/JO/EUI #
# R5.8 2011-09-05 H323 SIP FXS FXO #
# 2011-12-09T09:30:39 #
# SN/00A0BA02D98C #
# Generated configuration file #
# #
#----------------------------------------------------------------#
cli version 3.20
clock local default-offset -05:00
# this assumes your time zone is USA, New York. You can replace your clock offset to refelct your timezone and your DST start/stop date and times
clock local dst-rule SPRING2011 -04:00 from 02:00 mar 13rd 2011 until 03:00 nov 6th 2011
clock local dst-rule SPRING2012 -04:00 from 02:00 mar 11st 2012 until 03:00 nov 4th 2012
clock local dst-rule SPRING2013 -04:00 from 02:00 mar 10th 2013 until 03:00 nov 3rd 2013
clock local dst-rule SPRING2014 -04:00 from 02:00 mar 9th 2014 until 03:00 nov 2nd 2014
clock local dst-rule SPRING2015 -04:00 from 02:00 mar 8th 2015 until 03:00 nov 1st 2015
clock local dst-rule SPRING2016 -04:00 from 02:00 mar 13rd 2016 until 03:00 nov 6th 2016
dns-client server 192.168.0.16
webserver port 80 language en
sntp-client
#replace NTP1 and NTP2 with your networks preferred NTP ip addresses
sntp-client server primary NTP1 port 123 version 4
sntp-client server secondary NTP2 port 123 version 4
sntp-client local-clock-offset
#replace fxo1.sipdomain.tld with the hostname of this device for your network
system hostname fxo1.sipdomain.tld
system
ic voice 0
low-bitrate-codec g729
profile ppp default
profile call-progress-tone US_Dialtone
play 1 1000 350 -13 440 -13
profile call-progress-tone US_Alertingtone
play 1 2000 440 -19 480 -19
pause 2 4000
profile call-progress-tone US_Busytone
play 1 500 480 -24 620 -24
pause 2 500
profile tone-set default
profile tone-set US
map call-progress-tone dial-tone US_Dialtone
map call-progress-tone ringback-tone US_Alertingtone
map call-progress-tone busy-tone US_Busytone
map call-progress-tone release-tone US_Busytone
map call-progress-tone congestion-tone US_Busytone
profile voip default
codec 1 g711alaw64k rx-length 20 tx-length 20
codec 2 g711ulaw64k rx-length 20 tx-length 20
profile pstn default
profile sip default
no autonomous-transitioning
profile aaa default
method 1 local
method 2 none
context ip router
interface LAN
#replace the ip address and mask with the one you will be using for your device
ipaddress 1.2.3.4 255.255.255.0
tcp adjust-mss rx mtu
tcp adjust-mss tx mtu
context ip router
#replace the address 5.6.7.8 with the device real gateway ip address
route 0.0.0.0 0.0.0.0 5.6.7.8 0
context cs switch
digit-collection timeout 3
routing-table called-e164 SIP_TO_ISDN
route default dest-service OUTBOUND
routing-table day-of-week RT_DATE
route saturday dest-interface IF-SIP1 MAP_WEEKEND
route sunday dest-interface IF-SIP1 MAP_WEEKEND
route default dest-table RT_TOD
routing-table time RT_TOD
route default dest-interface IF-SIP1 MAP_WEEKEND
#change this time to reflect your actual office hours
route 08:30:00-17:30:00 dest-service HUNT1
mapping-table time to called-e164 MAP_WEEKEND
# outside og of the normal working, hours, specify the Auto Attendant you use to send calls for all other times, the default AA on sipx is 100
map default to 100
interface sip IF_SIPX
bind context sip-gateway GW-SIP
route call dest-table SIP_TO_ISDN
# replace with your sipx hostname
remote pbx.sipdomain.tld
# replace 300 with your hunt group number for daytime calls and pbx.sipdomain.tld with your sipx hostname
address-translation outgoing-call to-header user-part fix 300 host-part fix pbx.sipdomain.tld
interface fxo IF_FXO0
route call dest-table RT_DATE
route call dest-interface IF_SIPX
disconnect-signal loop-break
disconnect-signal busy-tone
ring-number on-caller-id
dial-after timeout 2
mute-dialing
use profile tone-set US
interface fxo IF_FXO1
route call dest-table RT_DATE
route call dest-interface IF_SIPX
disconnect-signal loop-break
disconnect-signal busy-tone
ring-number on-caller-id
dial-after timeout 2
mute-dialing
use profile tone-set US
interface fxo IF_FXO2
route call dest-table RT_DATE
route call dest-interface IF_SIPX
disconnect-signal loop-break
disconnect-signal busy-tone
ring-number on-caller-id
dial-after timeout 2
mute-dialing
use profile tone-set US
interface fxo IF_FXO3
route call dest-table RT_DATE
route call dest-interface IF_SIPX
disconnect-signal loop-break
disconnect-signal busy-tone
ring-number on-caller-id
dial-after timeout 2
mute-dialing
use profile tone-set US
service hunt-group OUTBOUND
drop-cause normal-unspecified
drop-cause no-circuit-channel-available
drop-cause network-out-of-order
drop-cause temporary-failure
drop-cause switching-equipment-congestion
drop-cause access-info-discarded
drop-cause circuit-channel-not-available
drop-cause resources-unavailable
drop-cause user-busy
route call 1 dest-interface IF_FXO3
route call 2 dest-interface IF_FXO2
route call 3 dest-interface IF_FXO1
route call 4 dest-interface IF_FXO0
context cs switch
no shutdown
location-service SIPX_SERVER
domain 1 sipx.voice.mydomain.loc
context sip-gateway GW-SIP
interface IF_SIPX
bind interface LAN context router port 5060
context sip-gateway GW-SIP
bind location-service SIPX_SERVER
no shutdown
port ethernet 0 0
medium auto
encapsulation ip
bind interface LAN router
no shutdown
port ethernet 0 1
medium 10 half
shutdown
port fxo 0 0
flash-hook-duration 50
use profile fxo us
caller-id format bell
encapsulation cc-fxo
bind interface IF_FXO0 switch
no shutdown
port fxo 0 1
flash-hook-duration 50
use profile fxo us
caller-id format bell
encapsulation cc-fxo
bind interface IF_FXO1 switch
no shutdown
port fxo 0 2
flash-hook-duration 50
use profile fxo us
caller-id format bell
encapsulation cc-fxo
bind interface IF_FXO2 switch
no shutdown
port fxo 0 3
flash-hook-duration 50
use profile fxo us
caller-id format bell
encapsulation cc-fxo
bind interface IF_FXO3 switch
no shutdown