Xblue Networks X-50 - Manual (Page 171)

XBLUE Networks 171
Voice
Tr
unk
9
Trunk
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Device Info
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Advanced Setup
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Wireless
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Voice
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+ Phone
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+ Trunk
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- IP Trunk
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- Trunk Group
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- Answering Position
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- Call Routing
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- Call Restriction
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- Emergency Numbers
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+ System
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+ Voicemail
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- Registered Phone
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- STUN
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Management
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Diagnostics
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Logout
A trunk also known as a Telephone or Central Office (CO) Line, provides access to the Public Switch Telephone
Network (PSTN). The X-50 offers two different types of Trunks; POTS and SIP. There are six (6) POTS (Plain Old
Telephone Service) Trunks, which are analog lines that are usually connected to a traditional telephone line
provider, such as a home telephone line.
There are also eight (8) SIP Trunks, which are telephone lines that are routed over the IP backbone, allowing
remote access to the providers Land Telephone (Central Office) Lines. Using SIP trunks will require more bandwidth
but may provide features that standard analog lines cannot provide, such as Direct Inward Dial (DID).