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Using FF240-IP with babyTEL SIP/T.38

Application Notes Rev. 1.1

Using FF240-IP with babyTEL SIP/T.38 Application Notes Rev. 1.1

Copyright

This publication may not be reproduced, in whole or in part, without the specific and express prior written permission signed by an

executive officer of Multi-Tech Systems, Inc. All rights reserved. Copyright © 2015 by Multi-Tech Systems, Inc.

Multi-Tech Systems, Inc. makes no representations or warranties, whether express, implied or by estoppels, with respect to the content,

information, material and recommendations herein and specifically disclaims any implied warranties of merchantability, fitness for any

particular purpose and non-infringement.

Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof

without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such revisions or changes.

Trademarks

MultiTech and the Multi-Tech logo are registered trademarks of Multi-Tech Systems, Inc. All other brand and product names are

trademarks or registered trademarks of their respective companies.

Contacting Multi-Tech

Knowledge Base

The Knowledge Base provides immediate access to support information and resolutions for all Multi-Tech products. Visit

http://www.multitech.com/kb.go.

Support Portal

To create an account and submit a support case directly to our technical support team, visit: https://support.multitech.com

Support

Business Hours: M-F, 9am to 5pm CT

Country By Email By Phone

Europe, Middle East, Africa: support@multitech.co.uk +(44) 118 959 7774

U.S., Canada, all others: support@multitech.com (800) 972-2439 or (763) 717-5863

World Headquarters

Multi-Tech Systems, Inc.

2205 Woodale Drive

Mounds View, Minnesota 55112

Phone: 763-785-3500 or 800-328-9717

Fax: 763-785-9874

Warranty

To read the warranty statement for your product, please visit: http://www.multitech.com/warranty.go.

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Overview

These Application Notes describe the configuration steps required for MultiTech FaxFinder FF240-IP to

interoperate with the babyTEL SIP/T.38 provider. Provided are product specifics, interoperability test results,

typical setup configuration, troubleshooting steps and other important product-related information.

FaxFinder IP provides distributed faxing capabilities through an IP telephone system, allowing companies to

provide fax services to remote offices and field sales people. FaxFinder converts inbound faxes to PDF or TIFF

files and delivers them to a recipient's inbox, a network folder, or a network printer. Users can send outbound

faxes through a fax client, web browser, email, or the print function of other applications.

Outgoing faxes can be sent from the MultiTech FaxFinder Client application, from any PC application that

supports print or from the MultiTech FaxFinder web interface. For compliance testing, the FaxFinder client

application was the primary method used to send outgoing faxes.

Requirements

The following are the basic needed requirements for interoperation between the MultiTech FaxFinder IP and

babyTEL SIP/T.38 provider:

Active babyTEL SIP/T.38 account with SIP parameters

MultiTech FaxFinder IP fax server

IP network with Internet access

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Equipment and Software

The following equipment and software were used during interoperability testing:

Equipment/Software Release/Version

MultTech FaxFinder FF240-IP.R1 3.6.3

MultTech FaxFinder FF840 3.5.2

MultiTech FaxFinder Client 4.0.0

babyTEL SIP/T.38 service (05/17/2016 through 05/25/2016)

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babyTEL Service Information

The following is from babyTEL’s fax support webpage https://us.babytel.net/en/fax/support/:

Setup and Installation Will the babyTEL service work with my network setup? Yes. Simply configure your SIP compatible equipment to connect to the babyTEL network using the SIP parameters we provide. For full and proper functioning of the babyTEL service and all other features, your equipment should be set up according to the detailed instructions provided by the manufacturer in their configuration guide. Do I need a special Internet connection? Depending on your Internet usage, it may be necessary to use a separate Internet connection for your babyTEL telephone service. At least 32Kbps in bandwidth is needed for each line used for voice only. 90Kbps must be available for each line that will be used for conventional fax calls (fax machine to fax machine) and data transmission (financial transaction terminals, alarm systems, modems). The reliability of data and DTMF transmission is totally dependent on the consistent quality of your Internet connection. To use a connection shared with data traffic, you and your Internet service provider must have compatible routers that will prioritize voice packets in both directions. What happens if Internet or power goes down? You can receive your calls even if your Internet service is interrupted. You can specify any telephone number or cell phone where we will forward your calls if your IP device stops communicating with our network due to a problem at your end such as a power failure, equipment malfunction or Internet disruption. Can my SIP device connect to babyTEL from behind my firewall? Yes. However, for some firewalls you may need to make a minor adjustment to avoid a rare situation where incoming calls can be blocked by your firewall. If unsure of how to make the recommended changes below, refer to the firewall help or contact your firewall provider for assistance. Consistent NAT: Firewalls that do no not use a Consistent NAT can block incoming calls. In this situation the firewall changes the address/port to which babyTEL needs to send the incoming call. If a call arrives at that

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moment, before babyTEL is notified of the new address/port, then that call will not reach your device. To avoid this, change your firewall setting to enable Consistent NAT. SIP-aware firewalls: SIP-aware firewalls can prevent calls from reaching your device. If this is the situation, disable the SIP awareness option on the firewall. Strict firewalls: In the case of very strict firewalls, such as the ones allowing traffic only on limited well-known IP ports, your incoming calls may be blocked. Add a rule to allow incoming UDP packets from nat.babytel.ca to be redirected to your device.

Technical summary on babyTEL reliability and quality measures

Redundancy and Fail Over: babyTEL service equipment is deployed in a modular infrastructure designed for high-availability with core network elements deployed in redundant, scalable configurations. Fail over strategies are in place for cases when network devices malfunction or communication links are broken.

Intelligent Outbound Routing: Typically outbound call traffic is routed through the Least Costly Route (LCR). When an outbound route fails babyTEL will automatically avoid routing outbound calls on that route. Utilizing outbound routes from at least four (4) different carriers, babyTEL is in a position to ensure near perfect outbound availability.

Strict Security Processes: Security protocols are used to protect against unauthorized access, while Session Border Control (SBC) devices and use of private addressing for core VoIP elements protect against malicious attacks.

Mission-Critical Hosting Facilities: babyTEL service equipment is hosted at secure data centers specifically designed for mission critical telecommunication applications.

Optimized Internet Backbone Connectivity: babyTEL procures Internet connectivity from providers with state of the art IP backbone networks optimized to carry traffic over fast and reliable optical fiber technology. These networks are counted among the primary backbones that comprise the Internet.

Premier Telco Carrier Peering: babyTEL connects to the public switched telephone network (PSTN) by peering with premier national and international Telco carriers.

Standards-Based Solution: The babyTEL solution was developed around a reliable, scalable communication infrastructure based on the industry standard Session Initiation Protocol (SIP).

Around-the-Clock Monitoring: Around-the-clock Network Operations Center (NOC) staff continuously monitors performance of all service equipment to ensure rapid problem detection and resolution.

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FaxFinder IP Configuration

Configuration details for the FaxFinder IP can be found in the FaxFinder IP Administrator Guide. Please visit

www.multitech.com to find FaxFinder IP documentation. A brief explanation of the required setup will be described

here.

The FaxFinder IP will need to be installed on an IP network with internet access. When configured properly, the

FaxFinder IP can deliver incoming faxes to email accounts, network shares or network printers. The FaxFinder IP

supports multiple methods for sending faxes. Faxes can be sent from email using T.37 fax, FaxFinder IP web

interface Send Fax page, FaxFinder client software or via the FaxFinder IP API. Details of these methods are

described in the FaxFinder IP Administrator Guide and will not be covered here.

To simplify and verify portions of the FaxFinder IP configuration process, it is recommended that the installer

configure inbound fax routing and test fax delivery by sending a fax from the FaxFinder IP web interface Send Fax

page back to the same unit. This can be accomplished by configuring Inbound Routing in the Fax Configuration page

for delivery to a recipient at an extension such as 163. In order for the FaxFinder IP to send a fax to itself, the IP

address of the FaxFinder IP in the Network page under System Configuration must match the IP address of the SIP

Proxy/Gateway in the SIP/T.38 page under Fax Configuration. Then from the Send Fax page send the fax to the

extension number of the recipient in the Inbound Routing page. You can view the progress of the fax by navigating

to the Fax Status page under Status & Logs.

Configuring MultiTech FaxFinder IP with babyTEL This section provides the instructions for configuring the MultTech FaxFinder FF240-IP fax server to be used with the

babyTEL SIP/T.38 provider.

1. It is assumed that the basic FaxFinder IP setup and configuration has already been completed. If basic

FaxFinder IP setup and configuration has not been completed, please refer to the FaxFinder Fax Server

FF240-IP Administrator Guide. To download the guide, go to

http://www.multitech.com/models/92500778LF.

2. Login to FF240-IP web management as an administrator.

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3. Go to Fax Configuration > Fax Provider and configure the Fax Provider and SIP sections with the babyTEL SIP

parameters of your babyTEL account and then save the configuration.

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Figure 1 – Example babyTEL SIP/T.38 configuration setup using the SIP parameters received from an example babyTEL

account.

Provider: select SIP/T.38

SIP Proxy/Gateway: use the Outbound Proxy parameter specified for your babyTEL account.

SIP Proxy Port: use the Outbound Proxy port specified for your babyTEL account

Authorization Required: enable by clicking the checkbox

Username: use your babyTEL User ID. User ID can be any one of your 11-digit babyTEL telephone numbers

Password: use the password specified in the SIP Parameters of your babyTEL account

Confirm Password: use the password specified in the SIP Parameters of your babyTEL account

Use Registrar: enable by clicking the checkbox

Registrar: typically the same parameter used for SIP Proxy/Gateway

Registrar Port: typically the same parameter used for SIP Proxy Port

Verification Steps This section provides the steps that can be performed to verify proper configuration of the MultiTech FaxFinder IP

with babyTEL SIP/T.38.

1. Login to FaxFinder FF240-IP web management.

2. Click the Send Fax button.

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3. Send a fax to a remote fax machine.

Verify the remote fax machine received the fax.

4. Send a fax from the remote fax machine to the FaxFinder FF240-IP.

Verify that the FaxFinder FF240-IP received the fax. To verify that the FaxFinder FF240-IP received

the fax, click Status & Logs and then click:

Fax Status to see faxes currently in progress.

Inbound Fax Log to see Faxes that have been delivered. Click Details to view a pop-up

window showing delivery details.

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Interoperability Compliance Testing

Interoperability compliance testing covered the following features and functionality:

Proper handling of faxes via the FaxFinder channels including send/receive, external faxing, and

miscellaneous failure scenarios.

Proper handling of faxes with different pages and complexities.

Reference Configuration

One Multitech FaxFinder FF240-IP fax server configured with babyTEL SIP/T.38, using 2 active channels, sending and

receiving faxes with one Multitech FaxFinder FF840 fax server configured to use two modem ports. A traditional fax

machine was also used to send/receive faxes with the FF240-IP.

For the purposes of interoperability compliance testing, the MultiTech FaxFinder Client was used as the main

process to send faxes.

General Test Approach and Test Results The feature test cases were performed manually. Fax calls were sent using the MultiTech FaxFinder Client application. The fault insertion test cases were performed manually by disconnecting/reconnecting the Ethernet cables to MultiTech FaxFinder and/or creating a busy state on a modem port.

Test Results Summary MultiTech FaxFinder FF240-IP configured with babyTEL SIP/T.38 - Test Cases

FaxFinder FF240-IP with babyTEL SIP/T.38

Basic Feature Test Cases

ID Name Description Results

1.1.1 Send faxes from FaxFinder to fax machine.

Use the FaxFinder Client that uses the FaxFinder IP configured with BabyTEL to send a Fax to a Fax Machine. - Verify that all pages were received and are of good quality

Pass

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FaxFinder FF240-IP with babyTEL SIP/T.38

Basic Feature Test Cases

ID Name Description Results

1.1.2 Receive faxes from fax machine to FaxFinder and fax delivery.

Send a Fax from a Fax Machine to the BabyTEL configured FaxFinder IP. - Verify that the correct extension digits were received on the FaxFinder IP and that it routed the fax correctly.

Pass

1.1.3 Send multi-page documents.

Use the FaxFinder IP Client to send a 10 Page Fax to a fax machine using FaxFinder IP configured with babyTEL.

- Verify that all pages were received and are of good quality

Pass

1.1.4 Send faxes to multiple fax machines simultaneously.

Use the FaxFinder IP Client that uses the FaxFinder IP configured with BabyTEL to send a fax to multiple fax machines simultaneously. - Verify that all pages were received and are of good quality

Pass

1.1.5 Receive multi-page documents.

Send a 10 Page Fax from a fax machine to the FaxFinder IP configured with BabyTEL.

- Verify that all pages were received and are of good quality

Pass

1.1.6 Send high resolution image documents.

Send a high resolution image fax to a fax machine using FaxFinder IP that is configured with babyTEL.

- Verify that the received fax has good image quality.

Pass

1.1.7 Receive high resolution image documents.

Send a high resolution image fax from a Fax Machine to the FaxFinder IP that is configured with BabyTEL.

- Verify that the received fax has good image quality.

Pass

1.1.8 Send and receive faxes simultaneously.

Use the FaxFinder IP Client that uses the FaxFinder IP configured with BabyTEL to send a 3 page Fax to a Fax Machine. While the FaxFinder IP is sending, have the FaxFinder IP receive a 3 page Fax.

- Verify that all pages were sent and received, and that the quality of each page is good quality.

Pass

1.1.9 Receive faxes from multiple fax machines simultaneously.

Simultaneously send faxes from several different fax machines to the FaxFinder IP configured with babyTEL. - Verify that all pages were received and are of good quality.

Pass

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FaxFinder FF240-IP with babyTEL SIP/T.38

Basic Feature Test Cases

ID Name Description Results

1.1.10 Load test. Repeatedly send and receive faxes over an extended time period.

Repeatedly send and receive faxes to and from the FaxFinder IP configured with babyTEL over an extended period of time.

- Verify the failure rate is low and the received faxes are of good quality.

Pass

FaxFinder FF240-IP with babyTEL SIP/T.38

Fault Insertion

ID Name Description Notes

1.2.1 All channels busy on FaxFinder.

All channels busy should result in a busy signal to caller. Pass

1.2.2 IP connectivity failure between babyTEL SIP server and FaxFinder IP.

IP connectivity failure should result in easily recognizable symptoms.

Pass

1.2.3 Send to a busy phone number.

Should produce an error message that easily identifies the error as a busy number.

Pass

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FaxFinder IP Troubleshooting

To troubleshoot FaxFinder IP, use the FaxFinder Fax Server FF240-IP Administrator Guide. To download the guide, go to http://www.multitech.com/models/92500778LF. Also, you may go into the FaxFinder IP web interface, go to System Configuration > Debug menu and set the log level to Info. Save and restart the system. Click on Download Logs and save the file on the local computer. You can then contact the MultiTech support as described below and provide them the debug information.

Multi-Tech Technical Support Knowledge Base

The Knowledge Base provides immediate access to support information and resolutions for all Multi-Tech

products. Visit http://www.multitech.com/kb.go.

Support Portal

To create an account and submit a support case directly to our technical support team, visit:

https://support.multitech.com

Support

Business Hours: M-F, 9am to 5pm CT

Country By Email By Phone

Europe, Middle East, Africa: support@multitech.co.uk +(44) 118 959 7774

U.S., Canada, all others: support@multitech.com (800) 972-2439 or (763) 717-5863

World Headquarters

Multi-Tech Systems, Inc. 2205 Woodale Drive Mounds View, Minnesota 55112 Phone: 763-785-3500 or 800-328-9717 Fax: 763-785-9874

babyTEL Support If you need help or have a technical problem, first review the online “Support” and “Documentation” sections. If these do not provide a solution, please contact us for further assistance.

babyTEL provides customer care and technical support for all its customers 24 hours a days, 7 days a week. Live

operators are standing by from 8 a.m. to midnight. babyTEL can be reached by email or phone. You can also login to

your online account portal and select “Request support” in the “Service” section.

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U.S. Toll Free: 1-877-808-VOIP (8647) For service inquires: service@babytel.net Address: 1425 Rene-Levesque Blvd. W. Suite 700 Montreal, QC.H3G 1T7 Montreal: (514) 201-6550 Toronto: (416) 848-0990