Bus Cont Plan&Disas Recov Plan 12
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Chapter17.pptxChapter 17: telecommunications and networking
Connections for today
Most business have two distant networks:
Voice communication that uses standard telephone system
Data communication that uses one or more computers that are connected to the Internet
Two networks are fading due to Voice-over-Internet Protocol (VOIP)
Public switched telephone network
PSTN Basics – each telephone has at least one pair of wires from wall jack to the punch block
Private Branch exchange – larger companies would utilize this (PBX)
PBX services:
Voice mail
Telephone conferencing
Call transferring
Music on hold
Other vital equipment in pbx room
Interactive Voice Response (IVR)
Intelligent Port Selector
Call Management System
Call accounting
Call Monitoring
Telephone company’s central office
Interexchange carrier point of presence
Various companies such as AT&T
What to look for:
System availability time, guarantee, consequences for downtime, restoration policy,
How does the carrier practice its disaster recovery procedures
Digital telephone network
VoIP systems are taking over tradition telephone systems
VoIP network uses:
VoIP telephone instrument
Wiring
A Server
Benefits:
Eliminates expense of running the analog cable
Elimanates cost of second cable
Saves cost by not having a PBX
Eliminates long-distance calling charges
Computer network basics
Personal area network
Local area network
Wireless network
Wide area network
Internet service providers (ISP)
Risk assessment
Look for single points of failure that will adversely impact your critical business processes
Risks:
Natural hazards
Human-Created hazards
Telecommunications and Network Equipment Room
Cabling
Developing a plan
Determine the telephone circuits restoration priority
Review network security
Telecommunications mitigation plan
Alternate communications methods
Action steps for your plan
Things to consider after a disaster:
Do not make any unnecessary calls – emergencies only
When calling, you may need to wait a few minutes to wait for tone
When you do receive a tone – dial quickly
Services may not be there for long!!
summary
Today’s business depend upon their data and telecommunications networks
Redundancy is your best defense
Thorough understanding of your organization’s requirements needed
