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I have the following at my main office:<br />
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1. &nbsp;CUCM 9.1.2<br />
2. &nbsp;Unity Connection 9.1.2<br />
3. &nbsp;Cisco 2921 Router (H.323) Voice gateway.<br />
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We have a small branch office, that is not on the VOIP system. &nbsp;They just have 5 old school phones connected to analog lines. &nbsp;They just have a receptionist that answers the phone. &nbsp;They want to be put on our VOIP system, so they can have autoattendant, VM to email, etc. &nbsp;I have a few questions about this:<br />
<br />
1. &nbsp;Could I just install a Cisco voice gateway router at this branch office with two VIC2-4FXO cards and connect to phone lines lines to it? &nbsp;<br />
2. &nbsp;Would I then add this new gateway to CUCM?<br />
3. &nbsp;Could I configure separate call handlers that would pick up when someone calls their phones lines coming off their gateway router?
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I have the following at my main office:

1.  CUCM 9.1.2
2.  Unity Connection 9.1.2
3.  Cisco 2921 Router (H.323) Voice gateway.

We have a small branch office, that is not on the VOIP system.  They just have 5 old school phones connected to analog lines.  They just have a receptionist that answers the phone.  They want to be put on our VOIP system, so they can have autoattendant, VM to email, etc.  I have a few questions about this:

1.  Could I just install a Cisco voice gateway router at this branch office with two VIC2-4FXO cards and connect to phone lines lines to it?  
2.  Would I then add this new gateway to CUCM?
3.  Could I configure separate call handlers that would pick up when someone calls their phones lines coming off their gateway router?

Cisco VOIP Question

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

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

Telecommunication occurs when the exchange of information between two or more entities (communication) includes the use of technology. Communication technology uses channels to transmit information (as electrical signals), either over a physical medium (such as signal cables), or in the form of electromagnetic waves. The word is often used in its plural form, telecommunications, because it involves many different technologies.