About VoIP
IT911Now VoIP reference — phone provisioning, DrayTek configuration, extension planning, and troubleshooting.
Category
Purpose
VoIP documents how IT911Now provisions, configures, and supports voice-over-IP systems for customers — from phone hardware and firmware to dial plans and troubleshooting.
What lives here
- Supported phone models and their firmware baselines.
- DrayTek device configuration references (routers, SBCs, ATAs).
- Provisioning procedures — extension setup, auto-provisioning, SIP credentials.
- Dial-plan patterns and common feature codes.
- Troubleshooting guides for call quality, one-way audio, and registration failures.
Related
For general hardware notes not specific to voice, see Hardware. For DNS and network configuration that supports VoIP (SRV records, QoS), see Hosting & DNS.
