Extensions define the information needed for an endpoint such as a hard phone, soft phone or some other device to connect to the SIP server. The extension is the SIP username and the password is the secret used for authentication. The domain name servers (DNS) to purposes it, locates the server to register to and is the realm that determines which domain the endpoint is registering to.


Basic Settings

  • Extension

    Enter the alphanumeric extension. The default configuration allows 2 - 7 digit extensions.

  • Number Alias

    If the extension is numeric then number alias is optional. The primary purpose of this field is when the extension is not a number then the number alias is required. Note a numeric extension and number alias does not currently work.

  • Range

    Enter the number of extensions to create. Increments each extension by 1.

  • Voicemail Password

    Enter the numeric voicemail password here.

  • Account Code

    Used with billing systems if you don’t have a billing system then its optional.

  • Effective caller ID Name

    Internal Caller ID name

  • Effective Caller ID Number

    Internal caller ID number usually set to the extension number.

  • Outbound Caller ID Name

    Used by the outbound route for external caller ID name. Business or Organization typically is set here.

  • Outbound Caller ID Number

    Used by the outbound route for external caller ID number here. Business or Organization number goes here.

  • Emergency Caller ID Name

    This is used when calling out to an emergency service like 911.

  • Emergency Caller ID Number

    This is used when calling out to an emergency service like 911.

  • Directory Full Name

    The first and last name used in the directory. You can call that directory with *411

  • Directory Visible

    Select whether to hide the name from the directory.

  • Directory Extension Visible

    Select whether announce the extension when calling the directory.

  • Limit Max

    Set max number of outgoing calls for this user.

  • Limit Destination

    Set the destination to send the calls when the max number of outgoing calls has been reached.

  • Voicemail Enabled

    Enable or disable voicemail for this extension.

  • Voicemail Mail To

    The email address for sending voicemail to email.

  • Voicemail File

    Select whether to send the voicemail as an attachment or as a link in the email.

  • Voicemail Keep Local

    Choose whether to keep the voicemail in the system after sending the email notification.

  • Missed Call

    Set the missed call to true and set the email address if you want to receive an email for missed calls that were routed through the dialplan to and was not answered by the extension.

  • Toll Allow

    Enter the toll allow value here. (Examples: domestic,international,local) This can be set to any name you want it sets a variable that can be a condition on the outbound routes.

  • Call Timeout

    Set the timeout for the call ringing.

  • Call Group

    You can define any call group you want the following groups are examples: sales, support, billing. These are used for group intercept or calls can be sent to the call group.

  • Call Screen

    If set will ask the caller to identify themselves. Their response will be recorded and offered to the person receiving the call.

  • Record

    Whether to record local, inbound, outbound, or all calls that were sent directly to this extension.

  • Hold Music

    Select music or ring tones that will be used for music on hold for this extension.

  • Context

    The context is set by default to match the domain name or IP addres. It is usually correct by default and doesn’t need to be changed in most cases.

  • Enabled

    Extension enabled or disabled.

  • Description

    A description for the extension.

Advanced Settings

Advanced settings in extensions. Be sure to know what and why you are changing these settings or you will risk causing issues for the extention.

  • Auth ACL

    Advanced auth acl uses.

  • CIDR

    Advanced cidr uses.

  • SIP Force Contact

    Choose whether to rewrite the contact port, or rewrite both the contact IP and port.

  • SIP Force Expires

    To prevent stale registrations SIP Force expires can override the client expire.

  • MWI Account

    MWI Account with user@domain of the voicemail to monitor.

  • SIP Bypass Media

    Choose whether to send the media stream point to point or in transparent proxy mode.

  • Absolute Codec String

    Absolute Codec String for the extension.

  • Force ping

    Use OPTIONS to detect if extension is reacheable.

  • Domain

    The domain the extension is currently saved on.

  • Dial String

    Location of the endpoint.

Caller ID Select

Extension Caller ID input type select

If you want extension caller ID name and number to be a input type text then make sure permission outbound_caller_id_select assigned to groups in Groups Manager. By default outbound_caller_id_select is not assigned to any user groups.

Extension Caller ID input type select

If you want a select option for caller ID then you would want to assign outbound_caller_id_select permission to groups of your choice using Group Manager and define Caller ID information in Dialplan Destinations.