Grandstream UCM6104 Configuration for OnSIP Trunking


Step 1: Gather information for the OnSIP Trunking User

You will need the following information from the OnSIP Trunking User in the Admin portal:

  • Username
  • Auth Username
  • SIP Password
  • Domain
  • Outbound Proxy

You can find this information in the user detail pages under the Users tab in the Phone Configuration section.

Step 2: Add the OnSIP Trunking user as a SIP Trunk in Grandstream UCM6104

Log in to the Grandstream Admin page

  • Create New SIP Trunk
  • Under the Basic Settings section
  • Complete the following:

    Provider Name > OnSIP
    Host Name > Domain
    Transport > All-UDP Primary
    Keep Trunk CID > checkmark (see image below)
    TEL URI > Disabled
    Need Registration > checkmark (see image below)
    Username > Username
    Password > SIP Password
    AuthID > Auth Username

  • Under Advanced Settings section
    Codec Preference > Selected Codecs = PCMU, PCMA, G.722, GSM, G.729
    From Domain > Domain
    From User > Username
    Outbound Proxy Support > checkmark (see image below)
    Outbound Proxy >
    DID Mode > Request-line
    DTMF Mode > Default

Step 3: Make test calls

Verify connectivity and correct signaling by placing test calls against a land line or cell phone.

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