The CAMEL Gateway is a powerful enabler for fast and easy development of Intelligent Network (IN) Services for mobile networks. Used as a convertor, it interconnects the CAP-based MSC with the DIAMETER-based OCS or between the DIAMETER-based IMS and the CAP-based OCS. With it’s RESTful interface, any 3rd party application server can implement an IN service.
Modulo’s CAMEL Gateway is a powerful enabler for fast and easy Intelligent Network (IN) services deployment in fixed and mobile networks using MAP, INAP or CAMEL Application Part (CAP) protocols. It also provides as a CAMEL (CAP) to Diameter to HTTP interworking function. The CAMEL (IN) Gateway is a key element for the successful deployment of intelligent applications which require real-time control of calls, SMS and GPRS sessions in the telephone network. It is used to provide mobile subscribers with real-time Intelligent Network (IN) and prepaid services, in the home network or while roaming. Rather than implementing complex transaction flows using native INAP or CAMEL APIs, our product offers a set of built-in pre-defined flows that can be triggered by the network or executed through a RESTful HTTP interface by a 3rd party application controller.
There is currently no standard for converting CAMEL Application Part signaling to Diameter signaling. The CAMEL Gateway product can be used in ‘conversion mode’ to convert Mobile Network SS7 signaling transferred using CAMEL (CAP) to signaling based on the Diameter protocol, or the other way around, to convert from Diameter to CAP.
This sometimes-critical inter working function allows network elements which use different protocols to seamlessly communicate with each other. A critical use case for CAP-Diameter conversion is for real-time billing. When a mobile operator with a 3G infrastructure wishes to replace their 3G OCS, which uses CAMEL for signaling, to a 4G OCS that uses Diameter, it will need an interworking function to convert the signaling between the 4G OCS and the 3G MSC. It also works the other way around, if an operator deploys a 4G infrastructure but wants to lower their upgrade costs by keeping the old billing system, which works well. The CAMEL Gateway solves all of these types of problems.
Conversion run-mode: CAMEL (CAP) to Diameter Interworking (IWF)
The RESTful run-mode allows a 3rd party web application server to implement an intelligent application by exchanging Json objects through RESTful HTTP requests. The application server can subscribe to one or more service keys and wait for the CAMEL gateway to report new calls over HTTP. CAMEL payloads are reported to the application as a JSON payloads and HTTP requests can be issued by the application to trigger desired behavior on the IN network. This mode can be used to implement any IN service such as number translation, call completion, blacklist, whitelisting and more…
RESTful run-mode: 3rd party web application server impements IN services
| Host | Physical or virtual server with Linux-based OS |
| SIGTRAN Interface | M3UA, M2PA, M2UA over SCTP |
| SCCP | ITU-T Q.711 through Q.a714 Connectionless Class 0 & 1 |
| TCAP | ITU-T Q.700 through Q.707, Q.781, Q.782, Q.791 |
| CAP | GSM 09.78 (ETSI TS101 046 - V5.6.0) CAMEL Phase 1 GSM 09.78 (ETSI TS101 046 - V6.3.0) CAMEL Phase 2 GSM 09.78 (ETSI TS129 078 - V4.6.0) CAMEL Phase 3 3GPP TS 29.078 V7.3.0 R7 3GPP TS 29.278 V7.0.0 R7 (IMS) CAMEL Phase 4 |
| DIAMETER | RFC 4006 - Diameter Credit-Control Application RFC 3588 / 6733 - Diameter base Protocol 3GPP TS 32.299 - Telecommunication management; Charging management; Diameter charging applications. |
