Cisco® IOS® 语音网关提供了PSTN到SIP中继网关设备，通过部署这些网关，可以有效地满足当前的语音网络需求，并受益于新兴应用。 思科统一通信系统由语音和IP通信产品及相关应用组成，使机构能更高效地通信—帮助它们简化业务流程、立即获得适当的人员和 ...

Configure an end user in CUCM administration first. When configuring the SIP third-party phone (basic or advanced), the end user previously configured will be associated to the phone as the digest ...