Linksys WIP310 SPA500 Series and WIP310 IP Phone Administration Guide - Page 106

Configuring SIP, SPCP, and NAT Configuring SIP 4 Configuring SIP Settings for Extensions STEP 1 Log in to the web administration interface. STEP 2 Click Admin Login and advanced. STEP 3 Click the Extension tab. STEP 4 Under Network Settings, configure the following fields: Parameter Description SIP ToS/DiffServ Value Time of service (ToS)/differentiated services (DiffServ) field value in UDP IP packets carrying a SIP message. Defaults to 0x68. SIP CoS Value [0-7] Class of service (CoS) value for SIP messages. Defaults to 3. RTP ToS/DiffServ Value ToS/DiffServ field value in UDP IP packets carrying RTP data. Defaults to 0xb8. RTP CoS Value [0-7] CoS value for RTP data. Defaults to 6. Network Jitter Level Determines how jitter buffer size is adjusted by the SPA9000. 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. Defaults to high. Jitter Buffer Adjustment Controls how the jitter buffer should be adjusted. Select the appropriate setting: up and down, up only, down only, or disable. Defaults to up and down. STEP 5 Under SIP Settings, configure the following fields: Cisco SPA 500 Series and WIP310 IP Phone Administration Guide 95