a SIP proxy server and service provider

To resolve these issues, ITSP (IP-Telephony service provider) support SIP OUTBOUND PROXY. Outbound proxy is the only way to let the NAT/firewall user make and receive phone calls. If the NAT/firewall router does not support SIP pass-through, you ne

用RMI构建一个分布式共享会议议程服务，不同的客户应该能够使用共享会议议程服务，该服务提供会议的查询，增加和删除功能，会议议程服务器有允许用户注册和撤销会议的功能。-RMI to build a distributed shared with the meeting agendas, different customers should be able to use the shared services agenda, the service provider meeting the quer