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Cisco Voip.<br />
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We have a cisco voip system, 2 x call servers and 1 x voicemail etc, all the voip stuff is on 1 vlan, we have a cisco pic that routes all the traffice intervlan etc. I want to be able to put 2 x phones at our directors houses, who both have brodband access, is there any way to program the cisco phones to talk through the firewall etc ......<br />
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Regards<br />
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Cisco Voip.

We have a cisco voip system, 2 x call servers and 1 x voicemail etc, all the voip stuff is on 1 vlan, we have a cisco pic that routes all the traffice intervlan etc. I want to be able to put 2 x phones at our directors houses, who both have brodband access, is there any way to program the cisco phones to talk through the firewall etc ......

Regards



cisco voip over the internet without vpn

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

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.

Hardware Firewalls

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).