In Cisco's documented 8800 startup sequence, the phone configures its VLAN before it obtains an IP address, and it obtains the IP address before it contacts the TFTP server.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco IP Phone 8800 Series
- Subsystem
- startup sequence
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager - Technical Details — Cisco Systems · tier 2 current vendor documentation · Phone Startup Sequence (Configure VLAN; Obtain IP Address; Access TFTP Server)
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting IP phones that do not get a voice VLAN or DHCP options: source note ip-phone-dhcp-vlan-troubleshooting-startup-vlan-before-ip. WarmTransfer. https://warmtransfer.net/knowledge/claims/ip-phone-dhcp-vlan-troubleshooting-startup-vlan-before-ip
BibTeX
@misc{warmtransfer-claim-ip-phone-dhcp-vlan-troubleshooting-startup-vlan-before-ip,
title = {Troubleshooting IP phones that do not get a voice VLAN or DHCP options: source note ip-phone-dhcp-vlan-troubleshooting-startup-vlan-before-ip},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/ip-phone-dhcp-vlan-troubleshooting-startup-vlan-before-ip},
note = {Source note ip-phone-dhcp-vlan-troubleshooting-startup-vlan-before-ip, checked 2026-10-02}
}