Information Technology Reference
In-Depth Information
To m a k e Vo I P c o s t - e f fe c t i v e
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To p r o v i d e t h e s a m e r e l i a b i l i t y a n d h i g h a v a i l a b i l i t y t r a d i t i o n a l l y a s s o c i a t e d w i t h o l d e r
voice technologies
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To o f fe r l o w e r c o s t o f o w n e r s h i p t h a n t r a d i t i o n a l t e l e p h o n y
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To o f fe r g r e a t e r f l e x i b i l i t y t h a n t r a d i t i o n a l t e l e p h o n y ( r e m o t e w o r k e r, m o b i l i t y )
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To l e v e r a g e i n t e g r a t i o n t o p r o v i d e n e w a p p l i c a t i o n s ( p r e s e n c e , I V R , c o n t a c t c e n t e r s )
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To i m p r o v e r e m o t e w o r k e r, a g e n t , a n d w o r k- a t - h o m e s t a f f p r o d u c t i v i t y
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To fa c i l i t a t e d a t a a n d t e l e p h o n y n e t w o r k c o n s o l i d a t i o n
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To e n s u r e b a c k w a r d c o m p a t i b i l i t y w i t h t r a d i t i o n a l s y s t e m s a n d e n d p o i n t s s u c h a s
PBXs, faxes, and the PSTN
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IPT Deployment Models
This section covers the Cisco IPT call processing deployment models:
Key
To p i c
Single-site deployment
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Multisite WAN with centralized call processing
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Multisite WAN with distributed call processing
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CallManager Express deployment
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Single-Site Deployment
The single-site deployment model, shown in Figure 14-10, is a solution for enterprises lo-
cated in a single large building or campus area with no voice on the WAN links. There are
no remote sites.
Cisco Unified
Communications Manager
(CUCM) Cluster
Unity: Voice Mail
V
PSTN Gateway
Router
PSTN
Access Layer
Inline Power
LAN Switches
Figure 14-10
Single-Site Deployment Model
