<div>
What do you basically need to set up the IP phones ?<br />
<br />
- Switch that support voice<br />
- Router that support voice<br />
- Call Manager to do the basic configuration of the IP phones<br />
- Ip phones.<br />
<br />
<br />
I don't know what the Communication Manager is used for ?
</div>


What do you basically need to set up the IP phones ?

- Switch that support voice
- Router that support voice
- Call Manager to do the basic configuration of the IP phones
- Ip phones.


I don't know what the Communication Manager is used for ?

<div>
So I need :<br />
<br />
- A Switch <br />
- A Router if I want to hook up to the PSTN <br />
-call manager
</div>


So I need :

- A Switch
- A Router if I want to hook up to the PSTN
-call manager

<div>
<div class="content wysiwyg-content">
<a href="http://everythingvoice.blogspot.com/2010/02/configuring-cisco-callmanager-part-1.html" rel="ugc">http://everythingvoice.blogspot.com/2010/02/configuring-cisco-callmanager-part-1.html</a><br />
<br />
I have been reading through the article in &nbsp;the link above, on how to configure Cisco Call Manager, but I am not sure if Call Manager is a specific Cisco appliance or Cisco Router or it is just an application that you can install on Windows Computer.<br />
<br />
Any idea?<br />
Thanls
</div>
</div>


http://everythingvoice.blogspot.com/2010/02/configuring-cisco-callmanager-part-1.html

I have been reading through the article in  the link above, on how to configure Cisco Call Manager, but I am not sure if Call Manager is a specific Cisco appliance or Cisco Router or it is just an application that you can install on Windows Computer.

Any idea?
Thanls

Cisco Call Manager

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).

Voice Over IP

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).