Nortel Networks SRG50 - Manual (Page 69)

Chapter 6 Setting up the private VoIP network 69
SRG50 Configuration Guide
Figure 13 Dialing Plan — Private Network panel, Private Network Settings subpanel
Meridian Customer Defined Network (MCDN)
MCDN is automatically activated when the system is converted to SRG operation. To ensure that
redirected IP telephones can transfer calls to the SRG local telephones, trunk anti-tromboning
(TAT) must be enabled.
To enable MCDN TAT
Use Element Manager to enable TAT by selecting the TAT checkbox at Configuration >
Telephony > Dialing Plan > Private Network > Dialing Plan - Private Network panel > MCDN
subpanel (see the figure
Dialing Plan — Private Network panel, MCDN subpanel on page 70).