A system (10) for controlling telecommunications calls includes a voice XML network gateway (12) including a voice interpreter module (20) and a call center server module (28) association with a telecommunications switch (58). The voice interpreter module (20) receives voice telecommunications signals, and the call center server module (28) receives call center telecommunications data signals. Interpreting circuitry (22, 24) interprets the voice telecommunications signals using the voice interpreter module in association speech recognition application (s) (16). Call center service providing (18) means provides call center service in response to the call center telecommunications data signals in association with call center application program(s). Control circuitry (26) associated with the telecommunications network server (12) controls the interpreting circuitry (20) and the call center providing means (28) in response to the flow of telecommunications calls from the telecommunications switch (58) according to the capabilities of the at least one speech recognition application (16) and the at least one call center application program (18).