Devices running firmware versions lower than those listed in the "Affected Versions" table must be upgraded to the corresponding "Recommended Versions" to connect to the new RPS server.
Affected Model & Version

| Model | Unsupported Version | Recommended Version |
|---|---|---|
| SIP-T53, T53W, T54W, T57W | lower than 96.84.0.12 | 96.86.0.50 and later |
| SIP-T19P_E2 | lower than 53.84.0.121 | 53.84.0.165 |
| SIP-T21P_E2 | lower than 52.84.0.121 | 52.84.0.165 |
| SIP-T23G | lower than 44.84.0.121 | 44.84.0.165 |
| SIP-T40G | lower than 76.84.0.121 | 76.84.0.165 |
| SIP-T40P | lower than 54.84.0.121 | 54.84.0.165 |
| SIP-T27G | lower than 69.84.0.121 | 69.86.0.165 |
| SIP-T41S, T42S, T46S, T48S | lower than 66.84.0.121 | 66.86.0.165 |
| SIP-CP920 | lower than 78.84.0.121 | 78.86.0.165 |
| SIP-T56A, T58A | lower than 58.84.0.37 | 58.86.0.165 |
| W52P | lower than 25.81.0.67 | 25.81.0.165 Handset: W52H: 26.81.0.165 W56H: 61.81.0.165 |
| W60B | lower than 77.83.0.83 | 77.85.0.165 Handset: W53HV85:88.85.0.91 W56HV85:61.85.0.93 W59RV85: 115.85.0.89 |
| CP960 | lower than 73.84.0.37 | 73.86.0.165 |
| SIP-T29G | 46.83.0.160 and below | 46.83.0.165 |
| SIP-T27P | 45.83.0.160 and below | No new version available for RPS service access |
| SIP-T41P | 36.83.0.160 and below | No new version available for RPS service access |
| SIP-T42G | 29.83.0.160 and below | No new version available for RPS service access |
| SIP-T46G | 28.83.0.160 and below | No new version available for RPS service access |
| SIP-T48G | 35.83.0.160 and below | No new version available for RPS service access |
| Other EOL Models: SIP-T19P/ SIP-T20P/SIP-T22P/SIP-T26P/SIP-T28P/CP860/ SIP-T32G/SIP-T38G/T52S/T54S | All versions no longer support RPS service access | No new version available for RPS service access |