Cisco SPA2102-SF Administration Guide - Page 164

ATA Voice Field Reference Line page B NAT Keep Alive Dest Destination that should receive NAT keep alive messages. If the value is $PROXY, the messages are sent to the current proxy server or outbound proxy server. The default is $PROXY. Voice tab > Line page > Network Settings section SIP ToS/DiffServ Value TOS/DiffServ field value in UDP IP packets carrying a SIP message. The default is 0x68. SIP CoS Value [0-7] CoS value for SIP messages. RTP ToS/DiffServ Value The default is 3. ToS/DiffServ field value in UDP IP packets carrying RTP data. RTP CoS Value [07] Network Jitter Level The default is 0xb8. CoS value for RTP data. The default is 6. Determines how jitter buffer size is adjusted by the ATA device. Jitter buffer size is adjusted dynamically. The minimum jitter buffer size is 30 milliseconds or (10 milliseconds + current RTP frame size), whichever is larger, for all jitter level settings. However, the starting jitter buffer size value is larger for higher jitter levels. This setting controls the rate at which the jitter buffer size is adjusted to reach the minimum. Select the appropriate setting: low, medium, high, very high, or extremely high. Jitter Buffer Adjustment The default is high. Controls how the jitter buffer should be adjusted. Select the appropriate setting: up and down, up only, down only, or disable. The default is up and down. Cisco Small Business ATA Administration Guide 164