Download e-book for kindle: Authorized self-study guide: Cisco Voice over IP by Kevin Wallace

By Kevin Wallace

ISBN-10: 1587055546

ISBN-13: 9781587055546

I've got my ccnp and ccna instant, so i have been via 6 different ciscopress books. althoug this ccvp ebook is fine, it rambles over an identical topics means too lengthy. i will not understand if it really is on the right track for the try out till i take the try, yet to date it sort of feels mediocre in comparison to the opposite ciscopress books i have acquired.

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Extra info for Authorized self-study guide: Cisco Voice over IP

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MGCP is implemented with use of a series of plain-text commands sent via User Datagram Protocol (UDP) port 2427 between the Cisco UCM and a gateway. It is important to note that for an MGCP interaction to take place with Cisco UCM, an MGCP gateway must have Cisco UCM support. If you are a registered customer of the Software Advisor, you can use this tool to make sure your platform and your Cisco IOS software or Cisco Catalyst operating system version are compatible with Cisco UCM for MGCP. Also, make sure your version of Cisco UCM supports the gateway.

The fact that RTP uses a dynamic port range can make it difficult for it to traverse firewalls. Although RTP is often used for unicast sessions, it is primarily designed for multicast sessions. In addition to the roles of sender and receiver, RTP defines the roles of translator and mixer to support multicast requirements. RTP is frequently used in conjunction with Real-time Streaming Protocol (RTSP) in streaming media systems. 323 or SIP in videoconferencing and push-to-talk systems. These two characteristics make RTP the technical foundation of the VoIP industry.

323-capable devices are the Cisco VG224 Analog Phone Gateway and the Cisco 2600XM Series, Cisco 2800 Series, 3700 Series, and 3800 Series routers. 323 gateway. 931, are used only on the Integrated Services Digital Network (ISDN) link to the PSTN, as illustrated in Figure 1-2. 323 Signaling MGCP The MGCP protocol is based on a client/server architecture. That simplifies the configuration because the dial plan and route patterns are defined directly on a Cisco UCM server within a cluster. Examples of MGCP-capable devices are the Cisco VG224 Analog Phone Gateway and the Cisco 2600XM Series, 2800 Series, 3700 Series, and 3800 Series routers.

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Authorized self-study guide: Cisco Voice over IP by Kevin Wallace


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