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Application Notes
How to Integrate MX Gateway with OM IP-PBX
Interconnect Two PBXs with FXO Gateways
Interconnect Two or More Extension Lines with FXS Gateways
Connecting MX100G-S SIP-ISDN Gateway to Elastix
Connecting MX100G-S SIP-ISDN Gateway to Asterisk
Expanding PBX Extensions to Remote Sites through IP Network
Multi-site Configuration for Gateways with Analog PBX
How to Troubleshoot Caller ID Detection Issues on FXO Port
Security Configuration Guide for New Rock OM Series IP-PBX
Connecting FXO Gateway to Asterisk
Connecting FXO Gateway to Elastix
Tie Trunk Configuration for OM with Elastix

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Smart Switchboard Introduces Exclusive Premium Customer Services
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New Rock’s New Gateway Security measures
Global VoIP Gateway Service Provider
How to Setup VoIP Gateway - A Complete Installation Guide
What is HX&MX VoIP Gateway Default Password?
Auto Provisioning
Six Practices for Audio Security
“PSTN failover” - Strong Support for High-availability IP Audio Communications
New Rock IP-PBX: Your All-In-One IP Office Telephony System
Connecting E1/T1-Based PBX to IP Telephony Networks
Popular IP-PBX Features Favored by Highly Efficient Officers
Five-star Customer Services
Top Three Advantages of Gateways with Imbedded VPN Clients
Low-Cost, High-Quality Gateway
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Two Typical Applications for Telephone Networks
IPv6’s Top Three Advantages in VoIP Applications
MX100G-S SIP-ISDN Trunking Gateway Training
MX Series VoIP Gateway Training

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PT2400 Quick Installation Guide
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Interconnect Two PBXs with FXO Gateways
Update Time:2018-04-18 13:15:15 Browse Times:4641 Amount Downloads:1171
New Rock’s SIP based VoIP gateways (MX series gateways) with FXS and FXO ports support peer-to-peer mode which has many applications in deploying enterprise multi-site telephone communication. In this application note, three popular applications and their related configurations are described:
-  Interconnect two PBXs at separate sites through IP network with FXO gateways
-  Interconnect two or more extension lines at separate sites through IP network with FXS gateways
-  Expanding PBX extensions to remote sites through IP network
In this application note, the first one popular application and related configurations are described.

Scenario

In this scenario, two PBXs located at different sites need to be interconnected through IP network, and spared extension lines are used to connect to the gateway.

In this diagram, each of the FXO gateways is installed with the FXO ports connecting to the extension ports of the PBX while the WAN port connecting to the router in the local office. Both gateways are interconnected over the IP network with SIP protocol in peer-to-peer mode for call setup.
Note: A static public IP address is required if the IP network is Internet.

Configuration on Gateway A

1. On Routing > Routing Table page, setup the routing rules for directing call from FXO port to IP and vice versa, as follows:


2. On the > Trunk>Feature, select Second stage dialing in the inbound handle field, and select Dialing tone.


Configuration on Gateway B

1. On Routing > Routing Table page, do the similar routing as follows.


2. On the Line > Trunk, same as we did on gateway A.

Dialing Method

For making calls from one site (e.g. extension 201)to an extension on the remote site (e.g. extension 301), the user of extension 201 picks up the phone and dials the number for the local extension port which connects to the gateway (202 in this example), and then dials301 after hearing the second stage dial tone from the local gateway.

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