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Chapter 4

Design Considerations

Lessons Learned

Figure 4-2

Passive Recording via Trusted Relay Point in Data Center

Cisco IP Phone

Customer in Branch

IP

V

Call Processing

Cisco Unified Communication Manager

Call Control flow Voice Media flow

Switch monitor port sends copy of streaming voice media to NICE logger server recording interface

Cisco Catalyst Switch

Cisco ISR with SRST and VXML

Recording

VoiceTrusted Relay Point

Cisco IP Phone

NICE VoIP Logger

NICE Interaction Center

V

IP

Expert at another Branch

Cisco Catalyst Switch

V

Cisco ISR with SRST and VXML

QoS Enabled MPLS WAN

QFP

WAN Router Cisco IOS Security

Data Center Switching

Switch IOS configuration

! monitor session 1 source interface Gi1/33 monitor session 1 destination interface Gi1/34 !

253554

Lessons Learned

TelePresence Lessons Learned

The video portion of a TelePresence call will not work with a regular deployment when following the configuration guide Cisco Unified Communications Manager Configuration Guide for the Cisco TelePresence Systems h t t p : / / w w w . c i s c o . c o m / e n / U S / p a r t n e r / d o c s / t e l e p r e s e n c e / c u c m _ c t s / 1 _ 6 / c o n f i g u r a t i o n / g u i d e / c u c m _ c _6.html. t s _ 1

In the above guide, the directory number used by the CTS unit and associated 7975 handset is a shared line. Within the installation steps, the directory number is specified to be configured as Auto Answer with Speakerphone in the Auto Answer drop-down menu. This configuration causes problems when calls are routed over SIP trunks to other systems (e.g., between Call Manager clusters to CVP queue, etc.). The Cisco 7975 phone will auto answer before the CTS unit as the transferred SIP call will appear as an audio-only call. In order to have the CTS unit answer the call and perform a reinvite, adding video back to the call between the endpoints, the directory number must be configured with Auto Answer off and in the CTS unit Product Specific Configuration Layout section of the CTS device configuration set the CTS Auto Answer drop-down menu to CTS Override - Auto Answer All. See Figure 4-3.

Cisco Virtual Expert Management for Financial Services Design and Implementation Guide

4-4

OL-21816-01

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