Bellingham, Washington-based Tatango said this morning that the startup has launched a new feature to allow users to record and send voice calls to members of the firm's group services. Tatango said its new Tatango Voice feature can be used by groups to communicate to many people over the phone at once, and is intended to replace the use of phone trees used by groups to communicate to members. The firm said the new offering will be free to users. The voice messaging is an expansion beyond Tatango's original service, which allows users to set up group and send out mass text-messages to those groups. The firm is venture backed by the Bellingham Angels.