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IP Telephony
Evaluation and Implementation
The Goals
• New Firm – One Firm (impact of a merger)
• Long term cost savings
• Voice/Video Conferencing/Data
• Positioning for new technology advantages
Why IPT? - Costs
• Short term costs are high– Infrastructure
• Need for upgrades anyway
– New phones• Need for consistency between offices
– Power– Bandwidth– Training and Support
Why IPT? - Costs
– Long Term Costs are Low• Scalability
– 2500 users per call manager
– Leverage the data infrastructure
– Leverage cabling (Cisco phones)
• Applications
• Maintenance
• Training and Support
Why IPT? - Functionality
• Shared Data Directories– Exchange– Intranet
• Application Integration– Outlook– Aptus (CRM)– Intranet
• Softphone/VPN• Conference Manager
Why IPT? - Support
• MACs
• Upgrades
• Extension Mobility
• Staff
Basic Facts
• Over 1000 phones• 8 offices in 3 time zones• 2 large offices in Kansas City, MO• Clustered Call Managers for redundancy and
seamless operation• Unity Voicemail servers networked• Video Conferencing over the IP WAN with
capability of all 8 offices participating simultaneously
Gotchas!
OR:
“What I learned during my summer implementation.”
Power
• You can’t have enough– UPS systems the size of a small room
• You can’t make it clean enough– Ground everything!
• You can’t know enough– Hire the experts
Bandwidth
• You can’t get enough
• Calculate, Calculate, Calculate
• Once you know what you need, buy more
Call Routing
• How do your offices handle incoming calls to the main number?
• How do your offices handle incoming calls to attorneys?
• 800 numbers?• Nightbells?• Human contact vs. ICD• Follow the sun coverage (One Firm)
Voice Prompts
• Must match call routing
• Getting the right voice
• Matching firm culture– “Ring All Extensions”?– “All operators are busy” or “let it ring”
Training
• Use live phones
• What applications?
• How much can you cover at once?
• Documentation– 3 X 5 Card– Trifold– Intranet
When it comes together
SBCISDN-BRI
AlltelISDN-BRI
AlltelISDN-BRI
SBCISDN-BRI
SBCISDN-BRI
SprintLease Line
Circuits
SprintLease Line
Circuits
1.5
36
Mb
ps
T1
SBCPSTN
AT&TPSTN
AT&TPSTN
AT&TPSTN
AlltelPSTN
WorldcomPSTN
NewvoxPSTN
SBCPSTN
1.536Mbps T11.536Mbps T1
SBCPSTN
SprintFrame Relay
Leawood, KS
St. Louis, MO
Omaha, NE
Overland Park, KS
Wichita, KS
Phoenix, AZ
Washington D.C.
3661 Router
3661 Router
3661 Router
Catalyst 6513
CallManager 1
Catalyst 4006
Power Patch Panel
Catalyst 3548
3661 Router 3661 Router
Catalyst 6509
Catalyst 4006
CallManager 1
Unity
Catalyst 6513
317 IP Phones
30 IP Phones
45 IP Phones
114 IP Phones
41 IP Phones
285 IP Phones
48 FXS
24 FXS
24 FXS
48 FXS
72 FXS
Unity
CallManager 2CallManager 2
2620 Router 2620 Router
VG200
Catalyst 3508G
Catalyst 3524-PWR3661 Router
VG200
VG200
VG200
Dual 1000BaseSX
1000BaseSX
Dual 100BaseTX
100BaseTX
Power CableStinson Morrison Hecker
Cisco AVVID Project
Created by: Shawn HoenshellLast Revised: April 9, 2002
Stinson Morrison Hecker
IP-IVRIP-IVR
Kansas City, MO Kansas City, MO
IP-ICD
3661 Router
3661 Router
3661 Router
SBCISDN-BRI
SBCISDN-BRI
AlltelISDN-BRI
SBCISDN-BRI
VG248
3640 Router 3640 Router
Catalyst 6509
79 IP Phones48 FXS
VG200
49 IP Phones
48 FXS
Catalyst 3508G
Catalyst 3524-PWR
VG248
VG200
45 IP Phones
48 FXS
Catalyst 3508G
Catalyst 3524-PWR
VG248
VG200
Catalyst 3548
Power Patch Panel
MCU3510 MCU3510
Conference Connection
SD
Cisco 3600C IS C O Y S T E M SS
P o w er SY S
Ser ie s
SBCATM
S D
Cisco 3600C I S C O Y S T E M SS
Po w e r S Y S
Se ries
CISCO VG200VOICE GATEWAY
POWER RPS ACTIVITY
CISCO VG200VOICE GATEWAY
POWER RPS ACTIVITY
CISCO V G200VOICE GATEWAY
POWER RPS ACTIVITY
CISCO V G200VOICE GATEWAY
POWER RPS ACTIVITY
CISCO V G200V O I C E G A T E W A Y
P O W E R R P S A C T I V I T Y
CISCO V G200VOICE GATEWAY
POWER RPS ACTIVITY
CISCO VG200VOICE GATEWAY
POWER RPS ACTIVITY
VG248
48 FXS
VG248
