Telephony Strategy at Coventry University - Jisc · Telephony Strategy at Coventry University!...
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Telephony Strategy at Coventry University
Transcript of Telephony Strategy at Coventry University - Jisc · Telephony Strategy at Coventry University!...
Telephony Strategy at Coventry University!
Agenda!
• Coventry University Telephony Infrastructure!• Enabling VoIP and Legacy PBX to work together!• Next Generation Switchboard!• Transitioning from ISDN to SIP!• A-Level Clearing Setup!• Enabling Services!
Coventry University Communications Infrastructure!
• Siemens iSDX!• Cisco Communications Manager!• 3500+ Phones across campus!
– Analog, Digital and VoIP!• Cisco Network Infrastructure!• Multiple ISDN 30 Trunks !• SIP Trunks through Janet!
Coventry University Telephony Infrastructure!
• Siemens iSDX!
GulsonRoad
InnovationCentre
Alma
RichardCrossman
PSTN
60 Ch
60 Ch60 Ch30 Ch
30 Ch
30 Ch 30 Ch30 Ch
30 Ch 30 Ch
30 Ch
William Morris
PSTN
PSTN
PSTN
PSTN
Alan Berry
StudentCentre
TechnoCentre
SwitchboardConsole
Charles Ward
120 Ch
30 Ch
30 Ch
30 Ch
60 Ch
Coventry University Telephony Infrastructure!
• Cisco Infrastructure!– UCS Platform !– CUCM!– UCCX!– Voice Gateways!
Alma
RichardCrossman
PSTN
60 Ch
60 Ch60 Ch
30 Ch 30 Ch30 Ch
30 Ch 30 Ch
30 Ch
William Morris
PSTN
PSTN
PSTN
PSTN
Alan Berry
StudentCentre
TechnoCentre
SwitchboardConsole
Charles Ward
VG
PUB SUB1
Primary DC
SUB2
Backup Data Centre
PSTNPSTNVG
VG
VG
UCCX1 UCCX2
Enabling VoIP and Legacy PBX to work together!
• Challenges!– Integrate Cisco Communications Manager with Siemens
iSDX!– Enable Cisco VoIP handsets with new DID range!– Switchboard that can handle CUCM and iSDX calls!!
Enabling VoIP and Legacy PBX to work together!
• Integrate Communications Manager with iSDX!!
iSDX LCharles Ward
8.0.001
Westell GW
Westell GW
WM8.0.031
024 7688 7688(024 7688 7xxx)(024 7688 8xxx)2000 Numbers
024 7679 5xxx1000 Numbers
Cisco VG30D
Student Centre DX
0247765xxxx10k numbers
CUCM 9.1
CUCM 9.1
Enabling VoIP and Legacy PBX to work together!
• Expanding DID Range!– Old DID Range on Siemens!
• 024 7688 8XXX!• 024 7688 7XXX!• 024 7679 5XXX!• (3000 Numbers)!
– New DID Range on Cisco !• 024 7765 XXXX!• (10,000 Numbers)!
– This enabled extensions to be dialled using old and new numbers during transition.!
!
iSDX LCharles Ward
8.0.001
Westell GW
Westell GW
WM8.0.031
024 7688 7688(024 7688 7xxx)(024 7688 8xxx)2000 Numbers
024 7679 5xxx1000 Numbers
Cisco VG30D
Student Centre
0247765xxxx10k numbers
CUCM 9.1
CUCM 9.1
Switchboard!
Previous Setup!
iSDX LCharles Ward
8.0.001
AC Win 4 Clients
Westell GW
Westell GW
WM8.0.031
024 7688 7688(024 7688 7xxx)(024 7688 8xxx)2000 Numbers
024 7679 5xxx1000 Numbers
Cisco VG30D
Student Centre DX
0247765xxxx10k numbers
CUCM 9.1
CUCM 9.1
Next Generation Switchboard!
New Setup!• BTS Commsware!
– Handles CUCM calls using SIP!
– Integrates with iSDX using the ApplianX Gateway!
– Call Director integrateswith Microsoft Lync and Exchange to get presence meeting details of user. !
– Call recording functionality!– Location independent
Agents!
Primary CallDirector Server
Agent PC
SIP Trunk
Call Control
PBX Estate
Agent Desk
Failover CallDirector Server
Call Control
SIP Trunk
iSDX L
CommsWareServer (SQL)
ApplianXGateway
SIP Trunk SIP Trunk
DPNSS
Westel Gateway
ApplianXGateway
DPNSS
PUB
Transitioning from ISDN to SIP!
• Challenges with DID Numbers!– Redundancy Issues with DID numbers!– DID numbers had limited capacity and could not be
expanded due to aging equipment at telco end!– Lines could not be increased for Clearing period!– Expensive Cloud based Queuing !
Transitioning from ISDN to SIP!
• Coventry University is using Janet SIP Trunks!– Reduced cost of provisioning ( +no
additional line charges)!– High Availability through redundant
Janet links.!– SIP Service Provider is dual
connected to Janet POPs.!– Quick provisioning of Service!– Reduced TCO!– Reduced call charges!– Flexibility to increase or decrease
channels!– Additional services like Cloud based
Queuing at competitive price. !
!
!!
Backup for SIP!
• High Availability for SIP!
• Testing Secondary Service Provider for SIP Trunks !– Backup internet connection for
diversity of circuit for Secondary SIP provider.!
– Outbound calls can be made using Secondary SIP Provider!
– Inbound calls can be re-directed to switchboard backup number.!
!
!!
A-Level Clearing!
PSTN
Sir William Lyons
Richard Crossman
Student Centre
Queue 1 Queue 2 Queue 3
HLS CUC BESECBA&D
Clearing Hotline
Accommodation Queue
AccomodationTeam
External Callers
Gateways forward calls to Queue-1 If Queue-1 is full calls
are forwarded to Queue-2
If Queue-2 is full calls are forwarded to Queue-3
Maximum of 100 calls can be Queued in each Queue. Maximum wait time of 60 minutes in Each Queue
2
1
34 5
5
Accommodation team gets calls from internal Queue
Calls from Queues are sent to Logged-in Hotline Agents
6
7
8
Hotline Agents transfer calls to Faculties/Courses
Calls sent from Telco to Coventry University
C
D
APrimary Data Centre
BBackup Data-Centre
Student Centre
External Callers call University Number1
2 Calls from PSTN to Voice Gateway
3
4
Calls transferred from Queue to Clearing Agents5
6 Calls transferred to faculties
7
8
Gateways forward calls to Queuing System
Calls forwarded from one Queue to next
Calls Queued for Accommodation team
Transfer calls from Sub-Queue to Accommodation team
D Departments/Faculties
C Clearing Hotline in Student Centre Buildings
B Backup Data-Centre
A Primary Data-Centre
Enabling Services!
• Unified Messaging using Exchange 2013!– Missed Calls Notifications!– Voicemail on Phone and Email using Exchange 2013!– IVR Services using Microsoft Exchange!
!
