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You can replacement models below:
Table 1 Models and application scenarios of the unified gateway
Model
| Application Scenario |
U1960 | Works as a voice PBX in midsize enterprises or as a local access gateway in midsize branches, providing services for 300–1000 users. |
U1980 | Works as a voice PBX in large-sized enterprises or as a local access gateway in large-sized branches, providing services for 1000–10000 users. |
U1981 | Works as a voice PBX in large-sized enterprises or as a local access gateway in large-sized branches, providing services for 1000–20000 users.
Compared with the U1980 of the same capacity, the U1981 provides a SD card for storing voicemail data, occupies smaller space (only 2 U high), and supports BRI trunk |
If you want to replace the device, you can visite the hotline and select the corresponding area to contact.