GL7600/HL76xx: Identifying the number of an incoming call

in my application I need to identify the number of an incoming call. Older modems have the command AT+CLCC for this purpose. AT+CLCC works with the HL76xx devices but it is not documented in the AT command guide. This suggests that the command is obsolete and may not be supported anymore in future versions.
What would be recommended method to get an incoming number?

Best regards

Other users also use +CLCC: