Pawan Goyal Albert G. Greenberg Charles R. Kalmanek William T. Marshall Partho Pratim Mishra Doug Nortz K. K. Ramakrishnan Integration of Call Signaling and Resource Management for IP Telephony. 44-52 1999 3 IEEE Internet Computing 3 db/journals/internet/internet3.html#GoyalGKMMNR99 http://doi.ieeecomputersociety.org/10.1109/4236.769422