# OCCBL / OCCBH — UC Voice Channel Booster (DSP)

URL: https://www.promark.tr/en/products/occb-booster
Category: Expansion Cards & Modules
Family: [OpenScape Business X8 Cards](https://www.promark.tr/en/products/osbiz-x8-cards)

Booster cards extending the 8 onboard DSP channels of the X8 mainboard: OCCBL +40 DSP channels, OCCBH +120 DSP channels. Determines IP-TDM conversion, conferencing and voicemail channel capacity — required in dense IP/hybrid installations.

## Key features

- OCCBL — +40 DSP channels (50009291 / L30251-U600-A933).
- OCCBH — +120 DSP channels (50009292 / L30251-U600-A934).
- Added on top of the mainboard's 8 onboard DSP channels.
- Channel need sized by concurrent IP↔TDM calls, conferencing and voicemail traffic.
- Promark: DSP channel calculation and configuration.

## Specifications

- **Type:** DSP booster (subboard)
- **OCCBL:** +40 DSP channels — 50009291 / L30251-U600-A933
- **OCCBH:** +120 DSP channels — 50009292 / L30251-U600-A934
- **Platform:** OpenScape Business X8 (on OCCLA mainboard)
- **Base:** 8 onboard DSP

## Use cases

- IP↔TDM channel capacity in IP-heavy X8 installations.
- Organizations with heavy conferencing/voicemail use.

## For a quote and BOM

https://www.promark.tr/en/contact · +90 312 544 09 15 · destek@promark.tr