Source note · Troubleshooting Cisco IP phone registration
On a Cisco IOS DHCP server the TFTP server for IP phones is set in the DHCP pool with option 150 ip ip-address.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- IOS DHCP server
- Subsystem
- DHCP
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Cisco Unified Communications Manager Express System Administrator Guide - Network Parameters — Cisco · tier 2 current vendor documentation · Network Parameters > Configure Single DHCP IP Address Pool
Cite this note
APA
WarmTransfer. (2026, September 24). Troubleshooting Cisco IP phone registration: source note cisco-phone-registration-troubleshooting-ios-opt150. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-registration-troubleshooting-ios-opt150
BibTeX
@misc{warmtransfer-claim-cisco-phone-registration-troubleshooting-ios-opt150,
title = {Troubleshooting Cisco IP phone registration: source note cisco-phone-registration-troubleshooting-ios-opt150},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-registration-troubleshooting-ios-opt150},
note = {Source note cisco-phone-registration-troubleshooting-ios-opt150, checked 2026-09-24}
}