Grandstream Networks 3CX Merkblatt

Grandstream Networks, Inc.

Configuring Grandstream Devices with 3CX Phone System

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Configuring Grandstream Devices with 3CX Phone System

Table of Content

INTRODUCTION.............................................................................................................4

NETWORK SETUP.........................................................................................................5

Local Network (LAN)................................................................................................................ 5

SBC (Session Border Controller) ............................................................................................. 5

Remote STUN ......................................................................................................................... 6

MANUAL CONFIGURATION..........................................................................................8

Local Devices (LAN) ................................................................................................................ 8

SIP Extension Configuration .................................................................................................................8

MPK / VPK Configuration ....................................................................................................................10

Remote Devices using 3CX SBC............................................................................................12

Remote Devices using STUN .................................................................................................13

AUTO-PROVISIONING.................................................................................................16

Local Devices (LAN) ...............................................................................................................16

Plug and Play ......................................................................................................................................16

Add New Device..................................................................................................................................18

Remote Devices using 3CX SBC............................................................................................19

Remote Devices using STUN .................................................................................................20

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Configuring Grandstream Devices with 3CX Phone System

Table of Figures

Figure 1: SIP Phones in the same LAN as 3CX Phone System ................................................................5

Figure 2: Remote Phone Located Behind SBC.........................................................................................6

Figure 3: Remote Phone using STUN ......................................................................................................7

Figure 4: Account Configuration on GXP2170 ..........................................................................................9

Figure 5: Phones Panel .........................................................................................................................10

Figure 6: Create a VPK on GXP2170..................................................................................................... 11

Figure 7: BLF Key..................................................................................................................................11

Figure 8: GXV3275 Account General Settings........................................................................................12

Figure 9: Outbound Proxy setting...........................................................................................................13

Figure 10: Configure Remote extension via STUN .................................................................................14

Figure 11: NAT Traversal set to STUN ...................................................................................................14

Figure 12: General Settings – STUN server ...........................................................................................15

Figure 13: GXV3275 Discovered via PnP feature ...................................................................................17

Figure 14: Assign Extension to Phone....................................................................................................17

Figure 15: Configuring BLF ....................................................................................................................18

Figure 16: Add Phone via MAC address.................................................................................................18

Figure 17: Devices behind SBC .............................................................................................................19

Figure 18: Provisioning via SBC.............................................................................................................20

Figure 19: Add Phone via MAC address.................................................................................................21

Figure 20: Provisioning using STUN ......................................................................................................22

Figure 21: Phone Configuration using STUN..........................................................................................22

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Configuring Grandstream Devices with 3CX Phone System

INTRODUCTION

All Grandstream products are SIP based and respect RFC3261 for SIP and related RFCs, allowing them

to interact with any SIP server including 3CX Phone System.

Grandstream endpoints support PnP (Plug and Play) feature to make devices installation and configuration

easy from SIP servers supporting this feature such as 3CX Phone System. Using auto-provisioning,

Grandstream devices can be configured with zero configuration on the device side.

This guide will help users to configure their Grandstream devices with 3CX Phone System via manual

configuration or via auto-provisioning.

This guide covers different network setups including:

•Local Devices (LAN): Grandstream devices and 3CX Phone System are located within same local

network.

•Remote Devices using SBC: Grandstream devices are located in a different network where a 3CX

SBC (Session Border Controller) is installed and connected to the remote 3CX Phone System.

•Remote Devices using STUN: Grandstream devices are located in a remote network behind a router

with NAT.

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Configuring Grandstream Devices with 3CX Phone System

NETWORK SETUP

In this tutorial, we will use three network setups including LAN, SBC and STUN.

Local Network (LAN)

Grandstream devices and 3CX Phone System are located in the same local network as shown on the

following figure.

Figure 1: SIP Phones in the same LAN as 3CX Phone System

SBC (Session Border Controller)

In case users have SIP devices outside the local network of 3CX Phone System but behind a 3CX Session

Border Controller, it’s possible to configure them with 3CX Phone System.

In this network setup, we consider the following:

•3CX Phone System FQDN is “gstest.3cx.eu”.

•3CX SBC is installed and configured correctly (IP: 192.168.6.31). Tunnel port (5090 by default

needs to be opened and forward traffic to SBC machine).

•Grandstream device is GXV3275 (IP: 192.168.6.225) located in same LAN as 3CX SBC.

IP: 192.168.5.116

IP: 192.168.5.210

IP: 192.168.5.136

IP: 192.168.5.212

3CX Phone System

Internet

Router

Switch

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Configuring Grandstream Devices with 3CX Phone System

Figure 2: Remote Phone Located Behind SBC

Remote STUN

Grandstream Devices support STUN mode in SIP Network Settings, allowing them to communicate with

3CX Phone System across the WAN.

3CX Phone System must be using a static public IP / FQDN, and the firewall should allow SIP / RTP traffic:

•TCP port configured during installation used for the provisioning of remote extensions (in this guide,

8001 with HTTPS).

•UDP port 5060: used for SIP traffic.

•UDP ports 9000–9500: used for RTP traffic (audio/video).

In this network setup, we consider the following:

•3CX Phone System FQDN is “gstest.3cx.eu”.

•Grandstream device is behind a router with dynamic IP.

IP: 192.168.6.31

IP: 192.168.6.225

3CX SBC

3CX Phone System

FQDN: gstest.3cx.eu

Private IP: 192.168.5.116

Router

Switch

Router

Internet

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Configuring Grandstream Devices with 3CX Phone System

Figure 3: Remote Phone using STUN

FQDN: gstest.3cx.eu

Private IP: 192.168.5.116

Private IP: 192.168.6.95

Router using

Dynamic Public IP

3CX Phone System

Internet

Router

Switch

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Configuring Grandstream Devices with 3CX Phone System

MANUAL CONFIGURATION

Before configuring the end device, users will need to ensure that extensions are already created on 3CX

Phone System and make sure that the devices are properly powered up, connected to your Network and

have IP addresses.

This chapter will introduce how to configure a Grandstream device manually located in the same local

Network as 3CX Phone System, behind a 3CX Session Border Controller, or remotely using STUN.

Local Devices (LAN)

The following chapter describes basic configuration instructions to configure a Grandstream device when

the device is in the same LAN as 3CX Phone System.

SIP Extension Configuration

To configure SIP extension, follow below steps:

1. Take note of the ID and password fields of the extension from 3CX Phone System which will be

configured on the device.

2. Connect the device to the network and power supply. The phone will boot up and obtain an IP

address (assuming a DHCP server is available in the network).

3. Use your browser to access the web interface of the device by entering http://ip-address where ip-

address is the IP address of the device.

4. Enter the admin username and password, and click login to access the configuration pages. Default

admin username and password are admin/admin.

5. Go to one of the Accounts  General Settings.

6. Make sure that “Account Active” is set to “Yes’, then Enter the SIP credentials retrieved from 3CX

Phone system on the appropriate fields as shown in the below example:

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Configuring Grandstream Devices with 3CX Phone System

Figure 4: Account Configuration on GXP2170

7. Click on Save and Apply for the configuration to take effect and register the account. The phone

will send SIP REGISTER request to 3CX Phone System and get the extension registered.

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Configuring Grandstream Devices with 3CX Phone System

Figure 5: Phones Panel

Note: Since the phone used is already on the same network as the 3CX Phone System, users may either

use 3CX Phone System private IP or FQDN on SIP Server Field.

MPK / VPK Configuration

Multi-Purpose Keys (MPK), and Virtual Multi-Purpose Keys (VPK) on supported models can be configured

to act as Speed Dial, BLF (Busy Lamp Field) and more other features.

VPKs are available in GXP21XX and GXP17XX series only and can be configured instead of using physical

built-in MPK or extension module (GXP2200EXT).

In this chapter, we are using GXP2170 which doesn’t support MPK by default (extension module can be

attached), thus we will use VPK available by default.

To configure VPKs on the phone, follow below instructions:

1. Log in to the phone’s Web GUI.

2. Go to Settings  Programmable Keys  Virtual Multi-Purpose Keys.

3. Click on Add VPK to add a new VPK. (Click on Edit VPK to edit an existing VPK).

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