Call service processing method, call service processing system and call platform

The embodiment of the invention discloses a call service processing method, a call service processing system and a call platform, wherein the method comprises the following steps of receiving a first call request sent by a calling-party user through a call application client side, wherein the first call request comprises a phone number of a calling party and a phone number of a called party; inquiring whether a unified phone number of an enterprise, which the phone number of the calling party belongs to, exists in related information of the phone number of the enterprise or not; if so, respectively dialling the phone number of the calling party and the phone number of the called party, wherein the number of the calling party is the unified phone number of the enterprise, which the phone number of the calling party belongs to, in a second call request of dialling the phone number of the called party; and bridging the call service at this time between a user terminal of the calling party and a user terminal of