csrstMaxConferences 1.3.6.1.4.1.9.9.441.1.2.6

Maximum number of simultaneous three-party conference calls configured on the router. Range is IOS version and platform dependent. With SRST Version 3.0 onwards, the following are the maximum values for each platform - Cisco 1751, Cisco 1760, Cisco 2600, Cisco 3640 - 8 conferences. Cisco 3660, Cisco 3725, Cisco 3745 - 16 conferences. Default is half the maximum number of simultaneous three-party conferences for each platform.