# Editing the route

Routes are used to assign the right trunk group to outgoing calls, thereby specifying the exchange connection.

A route determines the network connection via which an outgoing call is routed.

Table 1. Route settings
Parameter | Explanation
Route | Route reference number.
Call number / Name | Call number and name of the route.
Send access code | Here you can enter a prefix which is added to the call number dialled.
Send delay | Here you can specify how many digits the caller has to have dialled in direct dialling before the call is set up. Applications: The called destination does not support Overlap Receiving and can only evaluate complete call numbers. Line resources are scarce and seizure time should be restricted to a minimum.
External digit barring | The external digit barring allocated to the calling user is activated and prevents the connection from being set up if unauthorised digits are dialled. The digits of the external call number dialled are not verified.
Numbering plan identifier (NPI) | Dial E.164 if the outgoing calls are routed to the public network via this route.
Exchange connection allocation | Here you can specify which exchange connections are used to route the calls from this route to the network. You can enter several exchange connections. The route attempts to send a call via the first available exchange connection.

Parent topic: Outgoing call routing
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