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Free voice services available for all major IM clients: * Voice calls between Google Talk, MSN/Live Messenger and Yahoo! * Voice mail service, interoparable between major IM clients. * Voice conferencing: with any number of participants of any IM type. * Sending off-line messages and notifications. * Calling SIP phones and SIP services. * Receiving calls to your IM from any SIP phone. * Receiving calls to your IM from mobile or landline phones using SIP Broker. * Receiving calls to your IM from web users. * Free toll-free calling to 1-800, 1-866, 1-877 and 1-888 numbers via SIP Broker.