M4 Origination Points

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Origination Point is connection from some initial entity (device/line/trunk/provider/supplier/etc) where call starts/originates.

Call comes from Origination Point and goes to Termination Points.

Why there is no Register option on Origination Point?

Registrations are needed when Dynamic IP addresses are used. Dynamic IP addresses are very common on Retail business, but not on Wholesale. That is why M2 does not have such option.

You as a system owner can allow traffic from IP:Port:Technical Prefix. This is enough to receive traffic from any OP.

Connection Point configuration

General

  • Description - short name for Origination Point.
  • Ringing Timeout - allows to limit ringing duration (in seconds). Leave 0 for unlimited.
  • Call Timeout - allows to limit Call duration (in seconds). Leave 0 for unlimited (global Call timeout (7200 seconds) is still applicable in this case).

Servers

Origination Points (OP) can be assigned to one or more servers. If call comes from server where OP is not assigned, call will not go through.

Authentication

  • IP Address - IP Address of Origination Point (subnetting and IP range is allowed. For more information read Subnetting and IP range sections below).
  • Port - Port of Origination Point.

Origination Point

  • Act as Origination Point - if set to 'yes', this Connection Point will be handled as Origination Point.
  • Active - allows to activate or deactivate OP. If OP is deactivated, calls will not be accepted from this OP.
  • Tech. Prefix - technical prefix that is used to authenticate OP. If this field is empty, calls will be accepted from any number. If this field is not empty, then only calls with specific prefix will be authenticated (for example if Tech. Prefix is 00, then OP accepts numbers that start with 00xxxxxxx).
  • Destination Transformation - special Destination Transformation rules used to modify outgoing number.
  • Source Transformation - special Source Transformation rules used to modify Source number.
  • Routing Algorithm - defines how Termination Points are ordered for this Origination Point.
  • Routing Group - Routing Group used for OP routing.
  • Tariff - Tariff used for OP accounting.
  • Custom Tariff - Custom Tarrif that can override regular OP Tariff. If rates are found in Custom Tariff then these rates will be applied in accounting. If rates are not found in Custom Tariff, then regular OP Tariff is used.
  • Capacity - limit the number of concurrent calls for this OP (both ringing and answered calls are included in this limit).
  • Source (CallerID) Allow - regular expression (regexp) that defines which CallerIDs are allowed to go through this OP. If you want to allow all CallerIDs, enter .* in this input field.
  • Source (CallerID) Deny - regular expression (regexp) that defines which CallerIDs are denied to go through this OP.

Termination Point

Origination Point can also be Termination Point at the same time.

CallerID

  • Name - set name part for CallerID.
  • Number set number part for CallerID.
  • Random Number from Number Pool - set random number from Number Pool. Only number part for CallerID is set.

Codecs

Set which codecs are allowed for OP.

Advanced

  • Grace Time - if call duration is less than Grace Time, it will not be accounted (CDR will be generated, but OP balance will not be reduced).
  • Accept calls from any port - if set to 'yes', then calls from any port are accepted. If set to 'no', then only calls from specific port are accepted (see Port input field in authentication section).
  • Custom SIP Header - adds custom header to SIP request. Format is header: value (for example x-My-Custom-Header: my value).
  • Limit up to X Calls, during Y seconds - allows to control Calls per Second (CPS).
  • Disconnect Code Changes - allows to change hangup code which is returned to OP.

Subnetting

It is possible to set subnetwork (subnet) for Origination Point. Subnets allow you to have single Origination Point for multiple IP addresses. Instead of IP address, you can set subnet in IP Address input field. Subnet should be written in CIDR notation (for example 192.168.0.1/28). When subnet is used in Origination Point, all calls coming from that subnet will be authenticated.

You can use online subnet calculator to check IP addresses for given subnet.

IP range

If you need to set multiple IP addresses for single Orignation Point and Subnetting does not meet your needs, then you can set IP ranges. Ranges are written in the following format: 

xxx.xxx.xxx.xxx-yyy

When IP range is used in Origination Point, all calls coming from that IP range will be authenticated. For example, if we have IP range 192.168.0.101-150, then all IP addresses starting from 192.168.0.101 to 192.168.0.150 will be authenticated (50 different IP addresses are allowed to call to this Origination Point).

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