What this User’s Guide covers
- 48-Key Feature Phone (digital and IP versions)
- 24-Key Feature Phone
- 12-Key Feature Phone
- ESI Cordless Handsets (digital and IP versions)
- Expansion Consoles
| ESI Communications Servers (ESI-1000, ESI-600, ESI-200, ESI-100, ESI-50, ESI-50L) |
ESI C-Plus |
IVX C-Class | IVX X-Class1 IVX E-Class1 |
IVX S-Class1 | ||
| 48-Key Digital Feature Phone | ![]() |
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| 48-Key IP Feature Phone II (remote or local installation) |
[2.] | |||||
| 48-Key [local] IP Feature Phone | [2.] | |||||
| 48-Key Remote IP Feature Phone | [2.] | |||||
| 24-Key Digital Feature Phone | ![]() |
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| 12-Key Digital Feature Phone | ![]() |
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| ESI Digital Cordless Handset II | ![]() |
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| ESI [local] IP Cordless Handset II | [2.] | |||||
| ESI Remote IP Cordless Handset II | [2.] | |||||
| Original ESI Digital Cordless Handset | ![]() |
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| Original ESI [local] IP Cordless Handset | [2.] | |||||
| Original ESI Remote IP Cordless Handset | [2.] | |||||
| Expansion Consoles3 | ![]() |
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| Analog stations | ![]() |
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Discontinued.
2.
If system is IP-enabled. If necessary, consult your System Administrator for more information.
3.
For use only with 48-Key Feature Phone (digital or IP).

