List of known User-Agents/Servers
| User-Agent/Server header value | Software | Notes |
|---|---|---|
| yeti-switch 1.14.9core171 | Yeti-Switch | 1.14.9 - Yeti module version, 171 - SEMS Core version |
| * v2023-PRODUCTION.450 | Sippy Softswitch | any word may be there in place of * |
| TS-v4.7.2-08i | Mera MVTS II/MVTS PRO/RTU | |
| NetSapiens SiPBx v44-3-0 | NetSapiens | |
| EYRKONAESC2728 | Nortel??? | |
| ENSR2.5.43.37-IS1-RMRG503-RG605-CPO1187 | ||
| M800C/v.7.40A.501.661 | ||
| Smile CTI Server | ||
| VCS 5.11.2.4-022 | ||
| DC-SIP/2.0 | Metaswitch | |
| NetBorder Session Controller / nsc SDP | Sangoma |