Avaya X330WAN manual Ip rtp max-time

Chapter 4 Operational Concepts and Configuration Examples

Note: When the device on the other end is an Avaya device:

-Configure the port range of both X330WANs to the same range using the ip rtp port-rangecommand. Verify that your voice application (the Avaya DEFINITY Communication Server) is configured to the same port range.

-Configure both X330WANs to the ietf mode using the ip rtp non-tcp mode command.

Note: In order to verify that the number of concurrent compressed TCP connections is the same in X330WAN and in the router connected on the other side of the WAN, use the ip tcp decompression-connectionscommand. This command ensures decompression of TCP packets compressed by both routers.

Configuration tip: To obtain better voice quality when using cRTP, set the VoIP queue size to twice its original size. To perform this, do the following:

1Set the VoIP mode using the voip-queuecommand within the specific Serial interface context.

2Exit the Serial interface context.

3Obtain the current VoIP queue size using the show queuing command. The VoIP queue is the “Queue 1 (High)”.

4Set the VoIP queue to twice the current size using the queue-limit<queue id> <size> command within the previous Serial interface context, where queue id = 1 and size is twice the original value.

To configure RTP header compression, use the following commands:

•ip rtp header- compression

•ip rtp compression- connections

•ip rtp max-period

Enables compressing outgoing RTP packets.

Changes the number of connections the interface accepts for RTP compression.

Sets the maximum number of compressed packets sent between two full header packets.

• ip rtp max-time	Sets the maximum number of seconds between
	transmission of two full header packets.

•ip rtp port-rangeSets the RTP port numbers range.

•ip rtp non-tcp-modeSets the non-tcp decompression mode.

•show ip rtp header- Displays the active RTP compression parameters. compression

54 Avaya X330WAN User’s Guide