Question: What are the differences between 8x8 Gateways?
The following describes the differences between 8x8 SIP Trunks, SIP Ties and Gateways, including a brief description of function and application.
||Please note: Contact your Account Executive who can assist and answer questions on all of the options described here.
- Legacy SIP Trunk
- VO SIP Tie
- CC Carrier to VO SIP Tie
- LSG (Local Survivable Gateway)
- LAG/PSTN (Local Access Gateway)
||Public Switched Telephone Network
||Local Access gateway
||Local Survivability Gateway
||Session Initiated Protocol
||Private Branch Exchange
||Internet Protocol Branch Exchange
||8x8 has multiple options that are typically referred to as Gateways. The term gateway is a misnomer when it comes to referencing the type of offering, it is used here as a generic label. The Descriptions below will correctly label some as In/Out adapters and others as Gateways.
Legacy SIP Trunk
- 8x8 Legacy SIP Trunks provide PSTN (Public Switched Telephone Network) carrier level call termination.
- Customer supplied stand alone PBX such as Asterisk, Avaya, or Mitel
- Third Party IVR, eIVR that requires a PSTN Service
VO SIP Tie (In/Out Adapter)
- 8x8 SIP Tie trunks provide a direct call path "extension to extension" only between an 8x8 iPBX to a customers legacy PBX.
- New customers moving from a legacy premise PBX such as Mitel or Avaya to 8x8 XCaaS that require extension to extension dialing between both systems.
- Customers that require extension to extension dialing between 8x8 XcaaS and legacy IVR, eIVR connections.
VO SIP Tie with IPSec (In/Out Adapter)
- An IPSec (IP Secure) tunnel is a secure connection between 8x8 XcaaS and a customers edge firewall in conjunction with a VO SIP Tie.
- When secure call traffic is needed such as Banking or Medical.
- CC Carrier connects Call Center dialing through VO SIP Tie to a customers legacy PBX or IVR / eIVR.
- Call Center deployments to a legacy PBX or other iPBX.
LSG (Local Survivable Gateway)
- 8x8 solution stand alone appliance that allows in and out bound traffic if connection to 8x8 is lost.
- Note: A customer provided PSTN circuit such as Analog, PRI/T1 or SIP Trunk is required.
- Allows for Emergency and in or outbound call traffic to continue from a internet outage disrupting 8x8 services.
LAG/PSTN (local Access Gateway)
- Local PSTN by Country or region where PSTN termination is not permitted by Country or Regional laws (see Calling Countries for X-Series here)
- Some countries and regions do not allow for PSTN termination only by said country providers.
- When a third party IVR / eIVR or legacy PBX requires in country dialing.