User's Manual

Routed Head Quarter configuration 173
Prompt Response Description
IMS YES Enable IMS
...
Table 25
LD 15: Enable Message Center
Prompt Response Description
REQ CHG
TYPE FTR FTR_DATA
CUST
n
n = customer number
...
OPT MCI Message Center included
...
Routed Head Quarter configuration
In this configuration, there is more than one network segment in the
Head Quarter. The routers in this configuration must forward IP multicast
packages. Network components, such as switches and routers, must be
correctly configured for VoIP and IP multicast. The network must support
IP multicast between all network components that are used for IP DECT
System.
You can edit the following settings:
• Time to Live (TTL) value—The Time to Live value is used for the
multicast traffic. If the Time to Live for the multicast is set to 1,
multicast traffic is not forwarded by a Router. If the Time to Live is
higher than 1, multicast packages can be forwarded by the Router,
depending on settings in the Router. If the TTL (for the multicast
packages) is set to 1, leave this aggregated subnet mask empty. If
the TTL (for the multicast packages) is set to a value higher than
1, fill in this aggregated subnet mask to signal to the system which
smaller subnets are connected together as one subnet using a router
supporting IP multicast.
• Aggregated Subnet mask—The aggregated subnet mask is the
subnet mask for the DAPs to determine the network boundaries for
an IP DECT Network in which seamless hand over is possible. Use
G.711, which covers the network segments connected together using
routers that support IP multicast.
If there are DAPs outside this aggregated subnet mask, regard the
DAP or DAPs as in a branch office. Note that the IP address of the
PBX is compared with the IP address or addresses of the DAP or
DAPs using this subnet mask. If the IP addresses are in different
Nortel Communication Server 1000
SIP DECT Fundamentals
NN43120-123 01.07
6 January 2009
Copyright © 2008-2009 Nortel Networks
.