A method of managing Voice over Internet Protocol, VoIP, communications in a communications system, said method comprising the steps of: a) establishing a call talk state for a conversational communication from a network endpoint of a plurality of network endpoints (108, 110, 112) to a voice identification and authentication system through a softswitch provided in the communications system, wherein the voice identification and authentication system is a bank, the bank comprising a bank customer service comprising a bank accounting system; b) sending an authentication request from said voice identification and authentication system to said network endpoint; c) opening a conversation channel between said voice identification and authentication system to said network endpoint; and while said conversation channel is open, d) collecting, by the network endpoint, an authentication voice data sample from said network endpoint by selectively extracting audio data at said network endpoint for providing voice signatures, identification and authentication; e) selectively encoding in said network endpoint said extracted audio data for providing voice signatures, identification and authentication, so as to provide encoded authentication data segments (132, 132A, 132B, 134, 134A, 134B); f) forwarding said encoded authentication data segments (132, 132A, 132B, 134, 134A, 134B) to said voice identification and authentication system, through a Session Initition Protocol, SIP, signaling messaging channel separate from said conversation channel; g) comparing, by an authentication unit of the voice identification and authentication system said encoded authentication voice data sample against a voice signature for verifying said authentication voice data sample; and h) signaling, by the authentication unit of the bank or the bank accounting system that the requested authentication is complete by sending a SIP Subscribe message to the softswitch, wherein the softswitch forwards the SIP Subscribe message to the network endpoint; wherein the step (b) of sending an authentication request comprises sending, by the bank customer service, a SIP request to the softswitch and the softswitch forwarding the SIP request to the respective said network endpoint; and the step (f) of forwarding the authentication voice data sample comprises sending, by the softswitch, authentication voice data segments (132, 132A, 132B) to said bank or bank accounting system. a) establishing a call talk state for a conversational communication from a network endpoint of a plurality of network endpoints (108, 110, 112) to a voice identification and authentication system through a softswitch provided in the communications system, wherein the voice identification and authentication system is a bank, the bank comprising a bank customer service comprising a bank accounting system; b) sending an authentication request from said voice identification and authentication system to said network endpoint; c) opening a conversation channel between said voice identification and authentication system to said network endpoint; and while said conversation channel is open, d) collecting, by the network endpoint, an authentication voice data sample from said network endpoint by selectively extracting audio data at said network endpoint for providing voice signatures, identification and authentication; e) selectively encoding in said network endpoint said extracted audio data for providing voice signatures, identification and authentication, so as to provide encoded authentication data segments (132, 132A, 132B, 134, 134A, 134B); f) forwarding said encoded authentication data segments (132, 132A, 132B, 134, 134A, 134B) to said voice identification and authentication system, through a Session Initition Protocol, SIP, signaling messaging channel separate from said conversation channel; g) comparing, by an authentication unit of the voice identification and authentication system said encoded authentication voice data sample against a voice signature for verifying said authentication voice data sample; and h) signaling, by the authentication unit of the bank or the bank accounting system that the requested authentication is complete by sending a SIP Subscribe message to the softswitch, wherein the softswitch forwards the SIP Subscribe message to the network endpoint; wherein the step (b) of sending an authentication request comprises sending, by the bank customer service, a SIP request to the softswitch and the softswitch forwarding the SIP request to the respective said network endpoint; and the step (f) of forwarding the authentication voice data sample comprises sending, by the softswitch, authentication voice data segments (132, 132A, 132B) to said bank or bank accounting system.