Cisco Unified Communications Manager (CUCM) and Cisco Unity Connection (CUC) are two popular communication systems used in modern businesses. CUCM is responsible for call processing, while CUC provides voicemail and unified messaging services. In order for the two systems to work together, they must be integrated using a signaling protocol. In this article, we will discuss the signaling protocols that can be used for integration between CUCM and CUC.
SCCP (Skinny Client Control Protocol): SCCP is a Cisco proprietary signaling protocol that is used to communicate between CUCM and Cisco IP phones. It is also used for integration between CUCM and CUC. SCCP is a reliable protocol that provides a high level of control over call processing and messaging. However, it is limited in its ability to support advanced features.
SIP (Session Initiation Protocol): SIP is an open standard signaling protocol that is used for communication between different devices and systems. It is widely used in the VoIP industry and is supported by both CUCM and CUC. SIP provides a wide range of features and is highly customizable, making it suitable for complex communication environments.
H.323: H.323 is an ITU-T standard signaling protocol that is used for communication between different devices and systems. It is an older protocol that is less commonly used than SIP. However, it is still supported by CUCM and CUC and can be used for integration between the two systems.
MGCP (Media Gateway Control Protocol): MGCP is a signaling protocol that is used to control media gateways. It is primarily used in systems that include a mix of analog and digital devices. MGCP is supported by both CUCM and CUC and can be used for integration between the two systems.
TAPI (Telephony Application Programming Interface): TAPI is a Microsoft Windows-based signaling protocol that is used for communication between software applications and telephony systems. It is supported by both CUCM and CUC and can be used for integration between the two systems in a Windows-based environment.
In conclusion, there are several signaling protocols that can be used for integration between CUCM and CUC. SCCP, SIP, H.323, MGCP, and TAPI are all supported by the two systems and can be used depending on the requirements of the communication environment. The choice of signaling protocol depends on factors such as system compatibility, feature requirements, and the preferences of the administrator.