Trunks

Trunks are configured and managed by selecting the “Trunks” option in the menu of the user panel.

There are 4 types of trunks: Voice IN, Voice OUT, SMS, and System Trunks (Fig. 1)

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Fig. 1. “Trunks” section and available subsections.

Voice Trunks (Voice IN, Voice OUT) are used for establishing connections to VoIP systems (for example ITSPs and PBXs) as well as to gateways for landline and mobile phone connections. All DID numbers supporting voice services must be mapped to a selected voice trunk in order to deliver calls. Both Inbound and Outbound trunks are supported.

There are 5 types of Inbound voice trunks:

  • SIP

  • IAX2

  • H.323

  • PSTN (Public Switched Telephone Network)

  • phone.systems™

SMS Trunks are used to carry SMS data from and to SMS-enabled DIDs, and deliver those messages to the pre-configured destinations.

There are 5 types of SMS trunks:

  • E-mail (SMS IN Only)

  • HTTP IN

  • HTTP OUT

  • SMPP ESME

  • SMPP SMSC

System Trunks - are pre-configured by DIDWW and are reserved for specific uses such as directing inbound calls from DID numbers to specialty products and services, such as echo tests for monitoring call quality.