Nortel Networks Remote Gateway 50 - Manual (Page 28)

Page 28 of 258 Overview
553-3001-207 Standard 2.00 January 2006
2500-type) telephone. Since this is a call between IP and circuit-switched
devices, a DSP resource on a Media Card is allocated and connected to the
analog (500/2500-type) telephone. The IP address of the DSP resource is
returned to the main office Call Server so a direct media path between the
IP Phone and the DSP resource can be set up when the call is established.
Refer to IP Peer Networking: Installation and Configuration (553-3001-213)
for details.
Conference calls
When an SRG user initiates a conference call, the conference facilities of the
main office are used. This means that in a conference among three SRG users,
the LAN/WAN bandwidth of three media paths is used. The calls are
controlled by the main office, except in Local Mode. In Local Mode, SRG
users do not have access to conferencing.