The OpenStage family have a wide common feature set (listed below) and additional features per model (specified for each phone model).
The phone OpenStage 5 has no display.
| Keys and LEDsfeatures | OpenStage 5 | OpenStage 15 | OpenStage 20 | OpenStage 40 | OpenStage 60 | OpenStage 80 |
|---|---|---|---|---|---|---|
| Fixed function keys (Pushbuttons) | – | 5 (3 red LEDs) | 9 (5 red LEDs) | 10 (6 red LEDs) | 6 (5 blue LEDs) | 6 (5 blue LEDs) |
| Freely programmable keys | 8 (keys with red LEDs and paper lables) | 8 (keys with red LEDs and paper lables) | 0 | 6 (touch keys with red LEDs) | 8 (touch keys with blue LEDs) | 9 (touch keys with blue LEDs) |
| Mode keys (touch keys) | 0 | 0 | 0 | 0 | 6 (blue LEDs) | 6 (blue LEDs) |
| Optical call alert | – | – | – | Red LED | Blue LED | Blue LED |
| Volume adjustment | via +/- keys | via +/- keys | via +/- keys | via +/- keys | via TouchSlider | via TouchSlider |
| Navigation element | – | 3 navigation keys | 3 Ways navigator | 5 Ways navigator | TouchGuide | TouchGuide |
| Interfaces | OpenStage 15 | OpenStage 20 | OpenStage 40 | OpenStage 60 | OpenStage 80 |
|---|---|---|---|---|---|
| Bluetooth V2.0 | – | – | – | ||
| Headset jack (121 TR9-5) | – | – | |||
| USB Master | – | – | – |
The telephony application provides a set of features and the connectivity to a set of SIP systems (proxies, application servers)
| Platform | Comment | Details |
|---|---|---|
| OpenScape Voice | IP-Softswitch | V2.2 … V8R0 |
| Asterisk | IP-Softswitch | Phone SW >= V1 R5, Asterisk >= V1.8 |
Jahan Co. was founded in 2004 by the target of selling and installation of Siemens Telecommunication systems .after termination of Siemens enterprise section,Jahan Co. started a new approach by Unify Telephony systems .
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