专利名称：System and method for distributed call
signalling in telephony-over-lan networks
发明人：Shaffer, Shmuel,Beyda, William J.,Skrzynski,
Mark
申请号：EP00300945.3申请日：20000207公开号：EP1026861B1公开日：20060830
摘要：In a system and method according to the invention, a gateway 106 to an H. 323network is configured to monitor and intercept in-band signaling from external networks.The gateway 106 further provides to the H.323 terminal 102 out-of-band signalingindicative of the nature of the in-band signaling received from the external network. If thesignaling changes, the gateway 106 provides this information to the H.323 terminal 102.The gateway 106 thus prevents the need to cut through audio channels for ringbacktones or busy signals.
申请人：SIEMENS COMMUNICATIONS, INC.
代理机构：Allen, Derek
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