The following table lists the primary functional differences between the models in this release.

(tick) = Supported
(error) = Not supported

    SBC SWe (Virtual)SBCSWe (Cloud) 

SBC 51x0/52x0

SBC 5400SBC 7000 SeriesVMware with
ESXi Hypervisor
Direct KVM
Integrated SBC
in OpenStack

Fax transcoded calls:

(tick)(tick)(tick)(tick)(tick)(tick)(error)(error)Refer to Fax Over IP
  • G.711–T.38 (V0)
  • G.711–T.38 (V3)
  • T.38 (V0)–T.38 (V0)
  • T.38 (V3)–T.38 (V3)
Fax/Modem Fallback(tick)(tick)(tick)(tick)(tick)(error)(error)(error) 

GW-GW signaling / Gateway signaling support

(tick)(tick)(tick)(error)(error)(error)(error)(error)Refer to Configuring Gateways (Features Guide), Zone - Gw Trunk Group (EMA), Zone - GW Trunk Group - CLI.

Link Detection:

Refer to SBC Core Redundancy for details.
Physical link detection(tick)(tick)(tick)(tick)(tick)(error)(error)(error)NOTE: On the , physical link detection is supported only on DIO Packet Interfaces.
ICMP Ping(tick)(tick)(tick)(tick)(tick)(tick)(tick)(tick) 
ARP Probing(error)(error)(tick)(tick)(tick)(tick)(tick)(error) 

Maximum number of call legs

1/2 of UDP media port range1/2 of UDP media port range

Determined by:

  • number of IP addresses per interface
  • UDP media port range


(Refer to SBC SWe Performance Metrics)

Two examples assuming 64,000 media port range:

  • SBC 5000 series number of call legs = 32,000
  • SBC 7000 series number of IP addresses = 6 / number of call legs = 110,000

(Refer to SBC Provisioning Limits for details).

SIP Trunk Group profiles:

Refer to SBC Provisioning Limits for details.
1K(tick)(tick)(tick)Maximum number varies based on server hardware where VM is deployed and VM vCPUs / memory configuration

SBC 7000 4K/40K example:

  • 4,000 instances each of Address Contexts, Zones, IP Interface Groups, IP Interfaces, Signaling Ports;
  • 40,000 Trunk Groups

Standby packet port support

(error)(error)(tick)(error)(error)(error)(See note below)(error)Refer to SBC Core Redundancy for details.
DTMF detection (NP-based)(tick)(tick)(tick)(tick)(tick)(tick)(tick)(error) 
Geographical Redundancy (GRHA)(tick)(tick)(tick)(tick)(tick)(error)(error)(error)

Refer to SBC Core Redundancy details.

N:1 Redundancy(error)(error)(error)(error)(error)(error)


S-SBC: 1+1

M-SBC: 4+1

(error)Refer to SBC SWe Cloud N:1 Redundancy Architecture for details.
Maximum number of call legs1/2 of UDP media port range1/2 of UDP media port rangeBased on number of IP addresses per
interface and UDP media port range
Refer to
SBC SWe Performance Metrics
EVRC-B Codecs(tick)(tick)(tick)(tick)(tick)(tick)Pass-through(tick) 
H.323 Support(tick)(tick)(tick)(tick)(tick)(error)(error)(error) 
Direct I/O SupportN/AN/AN/A(tick)(tick)N/AN/AN/A 
ENA Networking SupportN/AN/AN/AN/AN/AN/AN/A(tick) 
DHCP Support(error)(error)(error)(error)(error)(tick)(tick)(tick) 
NIC Teaming(error)(error)(error)(tick)(error)(error)(error)(error) 
UC (Video, BFCP, Content Share)(tick)(tick)(tick)(tick)(tick)(tick)(error)(error) 


Note: Not supported for M4/M5 AWS instance types.
GPU Transcoding(error)(error)(error)(error)(error)(error)(tick)(error) 
SIP over SCTP(tick)(tick)(tick)(tick)(tick)(error)(error)(error) 
Network Wide Licensing(error)(error)(error)(tick)(tick)(error)(tick)(error) 

Supported for four packet port configuration only. Not supported for any other packet port configuration.