Auto-sense Voice

The Auto-sense voice feature is an addition to the Auto-sense module. Based on the events of the phone discovery in the network, you can use this feature to configure phone devices without manual intervention.

After the switch discovers a Link Layer Discovery Protocol (LLDP) packet with phone capabilities, the port transitions to the "voice" state. The port receives a message on the voice event details.

With the Auto-sense voice feature, you can configure the voice I-SID and the voice VLAN. If you configure the I-SID as untagged, the phone receives VLAN as zero. When you configure Auto-sense voice, switched UNI is configured in VOICE I-SID for each port that is in "voice" state. The switch adds the Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED) policies for voice and voice-signaling Type-Length-Value (TLVs) to the LLDP packet and sends LLDP packets to the phone. It uses the configured voice VLAN and default values for Differentiated Services Code Point (DSCP) (46) and priority (6). After you run the auto-sense voice command, a filter is installed to prioritize the traffic that passes through the configured I-SID. The filter applies to traffic that reaches the VOICE I-SID, which implies the voice traffic.

Note

Note

To change the Auto-sense voice configuration on the switch, delete the earlier configured voice I-SID and VLAN entry.

After you configure auto-sense voice, following tasks take place:

Note

Note