VoiBridge - VoIP-GSM Gateway

VoiBridge - VoIP-GSM Gateway VoiBridge - VoIP-GSM Gateway

Topex VoiBridge is a GSM/UMTS small capacity gateway with VoIP or PRI interfaces. Its main functionality is to interconnect VoIP or PSTN networks with mobile networks.

With Topex VoiBridge you make significant savings on calls from IP or PSTN to cellular networks and backwards.



* GSM/UMTS gateway with VoIP or PRI interfaces

* Interconnection with IP-PBXs based on SIP and H323

* Cost reduction and savings through LCR

* Advanced call-routing engine

* Mobility Extension




  • Capacity:
    -  up to 4 GSM/ UMTS channels
    -  up to 4 SIM cards ( 1 SIM per channel )


  • 2E1 intefaces - in & out (for PRI variant) 
  • H323 and SIP supported
  • Advanced incoming  call routing based on Caller- ID
  • Advanced call-routing of outgoing calls
  • Advanced security with integrated firewall




  • Supports up to 4 cellular operators
  • No need to add any other gateway
  • Simple integration with VoIP and PSTN networks
  • Least Cost Routing
  • Fast return of investment


This product proved to be seamlessly compatible with:

Alcatel 4400


Alcatel OmniPCX Office (OXO)

Alcatel OmniPCX Enterprise (OXE)

Siemens HiPath 2000

Siemens HiPath 3000

Siemens HiPath 4000





  •  Cinterion (Siemens) MC55

          EGSM 850 - power calss 4 - 2W

          EGSM 900 - power class 4 - 2W

          EGSM 1800 - power class 1 -1W

          EGSM 1900 - power class 1 - 1W


  • Wavecom Q24 classic

          GSM 850 + 33dBm

          GSM 900 + 33dBm

          GSM 1800 +30 dBm

          GSM 1900 +30 dBm  


  • Sierra Wireless MC8775V


         GSM 900 - power class 4 - 2W

         GSM 1800 - power class 1 -1W

         WCDMA 2100 Mhz - POWER CLASS 3  +24dBm


Technology Brief
Product Name TOPEX VoiBridge
Product Category

GSM & UMTS Gateway




SIP v.1, v.2, H323 v.2, v.4, ISDN PRI, DTMF, MFCR 2, R1, R2, R 1.5


Gateway between mobile networks and VoIP or PSTN networks,

SOHO solution for interconnecting IP and ISDN telephony with mobile networks,

Enterprise IP telephony convergence solution,

Mobile operators offering their services to Business Customers with IP or ISDN telephony infrastructure,

Telesales centers calling mobile networks,



The images of products are for illustrative purposes only, may vary from the actual product and may contain accessories not included in the standard package of the product. The product images are for presentation only and do not engage Rohde & Schwarz Topex S.A.s responsibility.

Technical specifications may contain typing errors, can be modified without any notice and doesnt represent a contractual obligation. Some of the functions/characteristics/specifications are optional. Before ordering a product we advise you to solicit actualised information about the products by contacting the Rohde & Schwarz Topex S.A. sales department.

Rohde & Schwarz Topex S.A. reserves the right to modify/update the information, especially the ones regarding the characteristics and prices any time, without prior notice. Taking into consideration the above, the presentation is not a contracting offer, the final price of the product would be defined after the client will choose the final configuration.

© 2007 Topex. All Rights Reserved. Topex Help Desk Support: +40 317302222.