Routing of calls between IP networks, with SBC and SAS for small scenarios.


The µSBC is the right choice for small and medium-sized businesses that use SIP technology in their telephony. It enable rotary calls between VoIP networks, solving issues of transcoding and survival, in addition to fallback and security.


Main benefits of the µSBC

Routing and fidelization

Control of telephony charges through configuration of routing by prefixes and/or by fidelization with carriers. It also allows for the ranking of the use of routes by priority, as well as the modification of source and destination numbers, if necessary.

Transcoding: for conversion of codecs

The µSBC has the capacity for up to 28 simultaneous SIP calls, with all of its SBC resources active, using the G.711 codec. It is compatible with and performs transcoding for G.729 according to the table below:

Max µSBC calls


Route failover and Survivability: telephony guaranteed

In case of failures, the µSBC is prepared to maintain continuity of communication. In the event of a failure with a VoIP carrier when the route failover resource is enabled, the unit ignores the route that the server is using and searches for another compatible route. When an IP PBX becomes unavailable, the enabled SAS feature allows the µSBC to assume the basic functions of the IP PBX, such as the completion of outgoing and incoming external calls, calls between extensions and call transferring.

SBC: Network security

The SBC isolates the client’s voice network from the VoIP carrier network or the Internet, thus providing the SIP network with security through data encryption. This way it protects the communication sessions from interception by third parties on all calls simultaneously.
Other important security features that are available include register authorization, call blocking by destination and source to protect against fraud, and masking of topology, among others.



  • Up to 28 calls between VoIP channels
  • Capacity for physical connection with up to 3 VoIP carriers, for high performance of the link with the carrier
  • 3 Gigabit Ethernet ports for a dedicated link with carriers
  • 1 front Gigabit Ethernet port for management
  • SBC and security features available for all calls simultaneously (consult the datasheet to see them all)
  • Friendly web Interface for configuration, monitoring and diagnostics
  • Provisioning via export and import of configurations and Zero-touch provisioning
  • Compatible with all G.711 codecs (A-law and μ-law) and G.729A
  • Customizable CDR
  • Routing of VoIP calls via data over LTE (4G) network
  • Call routing between two IP networks
  • G711 codec transcoding <-> G729
  • Voice network isolation
  • Survival
  • Records authorization
  • Feature for voice quality analysis traveling on the equipment – MOS



Application Model – µSBC


Connection of IP PBX with VoIP Internet Carrier

In this scenario, the µSBC connects to the local IP PBX server, with two VoIP Internet carriers, with all security resources.

ambiente µSBC ENG


Access here the PDF file with information from µSBC. Datasheet

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