<div>
From what I could tell those configurations basically showed the 2811 acting as a CallManager PBX and registering to a SIP Proxy Server on the WAN side. &nbsp;I am looking for it to be the SIP Proxy Server so that my PBX can register using a SIP trunk.<br />
<br />
Paul
</div>


From what I could tell those configurations basically showed the 2811 acting as a CallManager PBX and registering to a SIP Proxy Server on the WAN side.  I am looking for it to be the SIP Proxy Server so that my PBX can register using a SIP trunk.

Paul

<div>
<div class="content wysiwyg-content">
I am in the process of getting Qwest Integrated Access service installed. It is basically a T1 that they split between voice and internet. The device that they use to split it is a Cisco 2811 router that provides me with a couple ethernet connections and one T1 connection. I currently don't have a T1 card in my PBX as I have been using SIP trunking and would rather not spend the money needed for a quality one if I don't need to. My question is this:<br />
<br />
Can the 2811 support SIP trunking and would it possible to connect my PBX to the Cisco 2811 router using this? I am free to make any configuration changes to the router.<br />
<br />
From what I have read it looks like this may be possible, but I have not seen this done or spoken with anyone who has.<br />
<br />
Paul
</div>
</div>


I am in the process of getting Qwest Integrated Access service installed. It is basically a T1 that they split between voice and internet. The device that they use to split it is a Cisco 2811 router that provides me with a couple ethernet connections and one T1 connection. I currently don't have a T1 card in my PBX as I have been using SIP trunking and would rather not spend the money needed for a quality one if I don't need to. My question is this:

Can the 2811 support SIP trunking and would it possible to connect my PBX to the Cisco 2811 router using this? I am free to make any configuration changes to the router.

From what I have read it looks like this may be possible, but I have not seen this done or spoken with anyone who has.

Paul

Cisco 2811 SIP trunking to PBX

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

IP Telephony

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

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).