Hello, friend!
You have used the display board command to check whether a voice board exists.
If the system prompts that a board is automatically discovered, you need to run the board confirm command to confirm the board.
1. Query the current voice protocol running in the system. Run the display protocol support command to query the voice protocols that are currently supported by the system. If the system protocol is SIP, go to step 6. If the system protocol is not SIP, go to step 2.
2. Query the current MG interface of the system. Run the display if-mgcp all or display if-h248 all command to query whether an MGCP interface or an H.248 interface exists in the system. If the MG interface does not exist, go to step 4. If the MG interface exists, go to step 3.
3. Shut down and delete the MG interface.
1) Delete the user configuration data of the MG interface (for details, see the FAQ "How can I delete H.248 voice users individually or in batches?"), and then run the shutdown(mgcp) or shutdown(h248) command to shut down the MG interface according to the protocol type of the interface.
Note:This operation interrupts all the ongoing services carried on the MG interface. Therefore, exercise caution and check whether the operation is allowed before performing this operation.
2)Run the undo interface mgcp or undo interface h248 command to delete the MG interface.
4. Change the system-supported voice protocol to SIP. Run the protocol support command to change the system-supported voice protocol to SIP.
5. Run the save command to save the configuration data, and run the reboot command to restart the system for the new configuration data to take effect.
6. Run the interface sip command to add a SIP interface.
Thanks!