ok.. Sorry for not getting back to you sooner.. Currently I have setup two script and outline below. This is a cut and paste from the running configuration.. Script 1)  The IP SLA ping a host in our ISP DMZ and when it times out, it label the process as being down and then a script mannually moves to the other SIM card. As there doesn't seem a process for the router\IOS to handle heartbeat configuration between two provider to work out which is has a better signal stenght. In addition, we have a better data plan with our primary provider and therefore, it in our interest to use them as much as possible. IP SLA - this will ping a host in our network which is know host and always running. ip sla auto discovery ip sla 10 icmp-echo X.X.X.X source-interface Loopback0 (Where X..X.X.X is a know host within our network) timeout 15000 ip sla schedule 10 life forever start-time now IP tracker track 10 ip sla 10 delay down 150 up 150 This allow you to track the IP SLA with a timeout wait of 150 sec before it consitting the 3g interface is down. EEM - Once the IP tracker have label the 3g service as down. This script will cut over to a different ISP. vent manager applet SIM_Toggle event tag e1 track 10 state down event tag e2 timer countdown time 120 trigger   correlate event e1 or event e2 action 1.0 track read 10 action 1.1 if $_track_state eq "down" action 1.2  info type snmp oid 1.3.6.1.4.1.9.9.661.1.3.2.1.18.12 get-type exact This is a SNMP script to show who is your provider. Similar to running the command; Show Cellular 0 network action 1.3  syslog msg "Carrier is $_info_snmp_value" action 1.4  set x "$_info_snmp_value" action 1.5  cli command "enable" action 1.6  if $x eq "XXXXXX" our primary ISP action 1.7   syslog msg "XXXXX Network Issue. Switching to YYYYY"  Syslog message is send saying it moving backup ISP action 1.8   cli command "clear interface cellular 0" action 1.9   cli command "cellular 0 gsm sim activate slot 1" action 2.0  else action 2.1   syslog msg "YYYY Network Issue. Switching to YYYY" Syslog message is send saying it moving back to Primary ISP action 2.2   cli command "clear interface cellular " action 2.3   cli command "cellular 0 gsm sim activate slot 0" action 2.4  end action 2.5  cli command "do clear ip route *" action 2.6  cli command "do show ip sla statistics" action 2.7  cli command "do show ip route" action 2.8  cli command "do show ip interface brief" action 2.9 end Script 2) this is a base script in which it check who the current ISP is and if it the backup, then manually cut over to the Primary provider. event manager applet Failback-xxxxx event timer watchdog time 3600 action 1.0 info type snmp oid 1.3.6.1.4.1.9.9.661.1.3.2.1.18.12 get-type exact action 1.1 syslog msg "Carrier is $_info_snmp_value" action 1.2 set x "$_info_snmp_value" action 1.3 cli command "enable" action 1.4 if $x eq "YYYYY" action 1.5  syslog msg "Activating XXXXX Sim Card" action 1.6  cli command "clear interface cellular " action 1.7  cli command "cellular 0 gsm sim activate slot 0" action 1.8  cli command "do clear ip route *" action 1.9  cli command "do show ip sla statistics" action 2.0  cli command "do show ip route" action 2.1  cli command "do show ip interface brief" action 2.2 end ... View more