OpenScape Business X5R — 3.5U Rack UC Platform (Mid-Market)
3.5U rack UC platform for mid-market organizations requiring higher analog/ISDN port density — same 500-subscriber ceiling as X3R, but with much wider analog (68), ISDN BRI (48) and digital (56) port counts.

Specifications
- Form faktör / Form factor
- 3.5U rack
- Boyut / Dimensions (H × W × D)
- 155 × 440 × 380 mm
- Ağırlık / Weight
- ≈ 8 kg
- Renk / Color
- Gray / Green
- Anakart / Mainboard
- V3 Advanced
- Maks. abone / Max subscribers
- 500
- IP abone / IP subscribers
- max 500
- Dijital abone (UP0/E)
- max 56
- Analog abone
- max 68
- DECT (CMI)
- max 64
- SIP trunk kanalı / SIP trunk channels
- 120 (max 8 SIP provider)
- ISDN S0 / BRI
- max 48
- ISDN S2M / PRI
- max 30
- Toplam trunk / Total trunk channels
- 250
- Konferans / Conference channels
- 60
- Faks / Fax channels
- 8
- myPortal Desktop
- max 500
- myPortal @work
- max 250
- myPortal Outlook
- max 500
- myAttendant
- max 20
- myAgent (paralel agent)
- max 64
- Microsoft Teams Interworking
- max 500
- Güç / Power
- 100–240 V AC, 50–60 Hz (opsiyonel 48 V DC batarya/UPS)
- Çalışma sıcaklığı / Operating temp.
- +5 °C ile +40 °C
- Nem / Humidity
- %5–85
Key features
- 3.5U rack form factor — 155 × 440 × 380 mm, 8 kg; fits easily in any 19" cabinet.
- 3× more analog ports than X3R (68) + 3× more BRI (48) — ideal for sites with significant existing PRI/BRI plant.
- Up to 500 subscribers in one system — IP (500), digital UP0/E (56), analog (68), DECT (64) in parallel.
- 120 SIP trunks + 48 ISDN S0 + 30 ISDN S2M — 250 total trunk channels; supports mixed TDM+IP migration.
- myPortal: 500 Desktop, 250 @work, 500 Outlook + 20 myAttendant + 64 myAgent parallel.
- Microsoft Teams Interworking 500 + myPortal for Teams 500 users.
- 60 conference channels + 8 fax channels (500 fax subscribers via UC Suite).
- Redundant PSU + UPS support — resiliency for critical mid-market organizations.
- On-premises deployment: data on your network, cloud-independent, optional secured remote service.
Typical applications
Mid-size holding HQ — 100–200 users, large digital UP0/E phone fleet + ISDN PRI uplink.
Hospital / health facility — 100–200 scale polyclinic with analog patient room phones + IP doctor desks + DECT nurse call.
Manufacturing HQ building — office + production line + security gatehouse on one PBX; SIP-trunk with ISDN backup.
Government regional directorate — analog fax/intercom + digital senior phones + IP next-gen desks.
University campus — faculty building, 150–200 users; classroom phones + faculty IP sets.
Related Solutions
Related Products

Wall-mounted UC platform delivering high analog/ISDN port density without a rack cabinet — same 500-subscriber ceiling as X5R, ice-blue housing suits aesthetic environments.
Details
Compact 2U rack UC platform for mid-size offices — a hybrid telephony system scaling up to 500 users, with IP, digital, analog and DECT endpoints on a single platform.
Details
Enterprise UC platform with modular shelf architecture for high port density — 384 analog, 384 digital, 250 DECT and 180 ISDN S2M (PRI) ports, the widest hardware capacity in the X series. Headquarters platform for hotels, hospitals and campuses.
Details
Mid-to-upper segment IP desk phone — 3.5-inch color display, context-sensitive softkeys and expansion with up to 4 Key Modules; built for team leads and high call traffic.
Details
Flagship of the CP G2 family — for executive offices and busy reception, with 5-inch color display, 18 dynamic keys, Bluetooth 5.0, NFC and full OpenScape UC integration.
DetailsThe smallest and lightest (90 g) DECT handset in the portfolio — 2.4-inch color display, ergonomic for professional office use, with acoustic profile key and Bluetooth headset support.
Details3.5U rack UC platform for mid-market organizations requiring higher analog/ISDN port density — same 500-subscriber ceiling as X3R, but with much wider analog (68), ISDN BRI (48) and digital (56) port counts.