Handling communications between stations in a digital telecommunications system

A computer-readable medium having stored thereon a plurality of instructions, the plurality of instructions including instructions that, when executed by a processor, cause the processor to:

• a) receive requests for communications with communications stations;
• b) forward received said requests to endpoints, each intended one of said communications stations being at a corresponding endpoint;
• c) receive responses from said endpoints, each received response including an intended response to a forwarded request;
• and
• d) indicate to each of said endpoints whether a corresponding said intended response is appropriate, appropriate responses being handled normally, each said corresponding endpoint indicated to be providing an inappropriate said intended response responding with an alternate response.

A method of operating an endpoint in a digital communications network, said method comprising the steps of:

• a) receive requests for communications with a network station at said endpoint;
• b) determining an intended response to said received request;
• c) returning a consultation message indicating said intended response to an applications server;
• d) receiving an indication from said applications server that said intended response is not allowed;
• and
• e) returning an alternate intended response in a message to said applications server.