Weave phones work well with Cisco ASA firewalls. There are several important settings to verify that the ASA is configured correctly.


Use these resources to get started:

  1. VolP Implementation Guide
  2. Traffic Shaping/QoS for VolP

Recommended Configuration Changes

  • Ensure ASA is NOT inspecting traffic for SIP, RTSP, IP-Options, or DNS
  • Verify that WAN Interface is receiving a public IP Address
  • Set up Traffic Shaping/QoS (we use DSCP 26 (SIP) & 46 (Real-Time Media)) to prioritize voice traffic
  • You may want to build an Outbound firewall rule for Weave Traffic using our FQDN that will be provided during onboarding
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