Abstract: A method including receiving, from a non-participant, a request to access a chat group at a voice call number, the chat group including multiple participants is provided. The method includes providing a list of the participants to the non-participant, so that the non-participant may select to talk to a first participant from the list of the participants, receiving a call, from the non-participant to the first participant, at the voice call number via a voice communication channel, and initiating a voice data transfer between the first participant and the non-participant through the voice communication channel. A system and a non-transitory, computer readable medium storing instructions to cause the system to execute the above method are also provided.