Avaya DEFINITY Manual page 313

Network Latency Requirements on
LAN/WAN Connections from a
CTI Server to the MAPD
This section describes the network latency requirements, on the customer's
network, needed to support CTI links over a LAN/WAN. These are links,
connected via a LAN/WAN, between the CTI platform server machine and the
MAPD (or LAN Gateway) in a DEFINITY ECS.
1. No more than a 200 ms average round trip packet delivery time as
measured with "ping" over every one hour time period.
2. Periodic spiked delays of no more than five seconds while maintaining the
200 ms average round trip delivery time as measured with "ping" over
every one hour time period.
These requirements are needed to maintain the CTI link over a LAN/WAN.
Vectors with "adjunct route" steps to the CTI server are connected over this
LAN/WAN link.
If the switch is going to issue route requests, then the associated "wait" step must
always have a value greater then the largest periodic spiked delay. With a
maximum of five seconds allowed (as stated above), your "wait" step should be
greater than five seconds. If you can guarantee periodic spiked delays less than
five seconds, you can reduce the "wait" step time out accordingly.
If no response to a route select is received by the switch, the call will follow the
remaining vector steps in this specific vector. In other words, you should program
the vector to deal with the possibility that the "adjunct route" step might time out.
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Issue 3 May 2002 I-1