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We use asterisk at HQ. We have started using it to connect remote sites to our corporate PBX. &nbsp;Works well for us. &nbsp;I am looking for ideas on providing a backup plan if the corporate PBX is down. &nbsp;It is a huge single point of failure for us if we continue to convert remote sites to a single corporate pbx?<br />
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Thanks<br />

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We use asterisk at HQ. We have started using it to connect remote sites to our corporate PBX.  Works well for us.  I am looking for ideas on providing a backup plan if the corporate PBX is down.  It is a huge single point of failure for us if we continue to convert remote sites to a single corporate pbx?

Thanks


Asterisk Remote  Backup

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).