VoIP gateway:how to switch SIM cards?
Log in to the VoIP gateway device (192.168.1.67) and then you can easily Lock/Switch SIM cards.
Basic Settings
You can enable SMS warning on this page, which means you will get a SMS when SIM card is locked by device.
Figure 3.4.5-1 Basic Settings
Conditions for Locking Card
When the SIM excesses any condition below, gateway will lock/switch it.
Figure 3.4.5-2 Locking Card Conditions
We take “consecutive failed calls checking” for example to explain the lock/switch function.
| Items | Description |
| Enable or Not | If it is enabled, the consecutive failed calls will be used as a condition for system to check. |
| Reset When Switching | This condition will be recalculated next time when it is switched by other conditions. |
| USSD Query | After switch to next SIM, the next SIM will send USSD query command first. |
| Failed Calls | The maximum number of consecutive failed calls on this SIM card. If the number of consecutive failed calls excesses this value, the card will be locked if this condition is enabled. |
| Locking duration | The duration of locking. 0 means no lock while -1 means permanent lock |
If the SIM card is locked by gateway, it will show 
, it means locked by device. And you will also see the Description on running status >> call status page.
| Lock/switch card conditions | Description on call status page |
| SIM Online Time Checking | Switch timer fired |
| Accumulated Call Duration Checking | Talk dur expired |
| Accumulated Connected Calls Checking | Talk num expired |
| Accumulated Calls Checking | Call num expired |
| Consecutive Failed Calls Checking | Failed call num expired |
| Consecutive No-Alert Calls Checking | Noalert num expired |
| Consecutive No-Answer Calls Checking | Noanswer num expired |
| Consecutive No Carrier Calls Checking | Nocarrier num expired |
| Consecutive Short-Duration Calls Checking | Shortdur num expired |
| Accumulated SMS Count checking | SMS num expired |
| Accumulated Failed SMS Count Checking | Failed SMS num expired |
| Consecutive Failed SMS Count Checking | Con-failed SMS num expired |