CAMEL stands for Customized Applications for Mobile network Enhanced Logic.
(CAMEL) protocol is a signaling protocol used in the Intelligent Network (IN) architecture. The CAMEL protocol enables mobile network operators to define and offer additional features and services for their subscribers, beyond the standard GSM or UMTS services.
Some of the use cases of the CAMEL protocol in telecommunications are:
• Prepaid roaming services: The CAMEL protocol allows prepaid subscribers to use their mobile services while roaming outside their home network, by enabling real-time charging and credit control. The CAMEL protocol also allows the home network to monitor and control the usage and balance of the prepaid subscribers, and to apply different tariffs and policies based on the roaming network and destination.
• Fraud control: The CAMEL protocol allows mobile network operators to detect and prevent fraudulent activities, such as SIM cloning, call forwarding, or call selling, by enabling the home network to authenticate and authorize the subscribers and their requests. The CAMEL protocol also allows the home network to block or limit the access of suspicious or blacklisted subscribers, or to alert them of potential fraud.
• Special numbers: The CAMEL protocol allows mobile network operators to offer special numbers or short codes for their subscribers, such as voicemail, customer service, emergency, or premium services. The CAMEL protocol enables the home network to route these calls to the appropriate destination, regardless of the location or network of the subscriber. The CAMEL protocol also allows the home network to apply different charging and billing rules for these calls, such as free of charge, flat rate, or premium rate.
• Closed user groups: The CAMEL protocol allows mobile network operators to create closed user groups for their subscribers, such as corporate customers, family members, or friends. The CAMEL protocol enables the home network to provide special features and benefits for these groups, such as reduced rates, unlimited calls, or extension numbers. The CAMEL protocol also allows the home network to enforce access and security policies for these groups, such as authentication, authorization, or encryption.