SIP Trunk (Zenitel Connect Pro)

Introduction

Zenitel Connect Pro (ZCP) can be interconnected to a SIP Server (e.g. iPBX or Call Manager) via a SIP trunk.

There are two ways to call from a user in ZCP out on the SIP trunk:

• Prefix: Dial the Prefix + the external extension number
• Integrated number plan: Simply dial the extension number without any prefix

SIP Trunking is a licensed feature. A ZCL-PBX license is required per trunk

Adding the SIP Trunk and defining the Prefix

Go to Devices and Connections > External Communication, select Trunk Type External iPBX communication and click the to add a new trunk.

• Prefix: The digit(s) to dial to access the trunk
• Name: Any descriptive text
• Peer Address: The IP address of the SIP Server
• Call Service: Call Service for an incoming call.
• SIP Transport: protocol to use (UDP, TCP or TLS)
• SIP Authentication: Username and Password to authenticate towards the SIP server
• Medias codecs: Options are G722, G711u, G711a, GSM, H264, L16x48
• Media encryption: Choose No or SRTP (secure RTP)
• Status: Reachable or Unreachable. Tells if the connection is up or down.

Defining a SIP trunk

Integrated Number Plan

It is possible to define outgoing number ranges. Numbers in these ranges can be dialed directly, without the need to dial a prefix. This gives a possibility to make a integrated numbering plan for all SIP trunks in a linked network.

To define the outgoing numbers, select a defined trunk and click on on the left.

In the Outgoing Numbers Range pane, click on to define a new range and enter the From and To directory numbers.

Here the numbers 230-299 will be routed to the SIP Trunk

It is possible to add multiple ranges for each SIP trunk connection. A range consisting of a single number must have that same number entered both in the To and From column. The To and From directory numbers must have the same number of digits.

Homepage (Zenitel Connect Pro)