May 15, 2014

To: Anchor Telcom

        When our organization experienced a rapid expansion, it became necessary to switch to a new phone system. Anchor Telcom helped us figure out the system that would work best for us. The selection was a VoIP hosted telephone system. This was a very smart decision, which allows us to print call records, check voicemails by email, forward and pre-pend messages to diferent staff members. These are only some of the features offered by the system. There are too many to list.
         We were pleased with their work, from installing the new system in our new facility to training staff on the use of the system.  We have been very pleased with how professional and fast our questions about the phone system have been handled. The new phone system is just what we needed and it’s making things run more smoothly in our new office.
Thank you Dan!

Lisa Hildebrand, Executive Director

Rhode Island Association for the Education of Young Children

Our company was founded on two guiding principles:
In other words, we don’t just support the product... support IS the product.

Sell a high quality product

Back that product up with exceptional technical support and customer service

​​​​One of the first tasks for anyone starting a business is ensuring reliable phone access. A lot of work is done on networked computers, but offices still need phones for day-to-day communications.

Older, proprietary phone systems were quite expensive, and they were difficult to reconfigure or scale up or down as business dictated. However, Voice over Internet Protocol, or VoIP, offers phone technology using broadband internet connections, and hosted VoIP systems in particular offers many advantages over the old systems. Here are some of the biggest advantages of hosted VoIP phone systems.

Anchor Telcom helped solve ALL of our telephone needs with the Anchor Hosted VOiP telephone system. Attentive service, flexibility and no more than a phone call away, their VOiP sevices are both highly functional and affordable. 
We truly recommend them to any business.   
​Brian K Crum, Gentry Moving Johnston RI



       VoIP is an acronym for Voice Over Internet Protocol, or in more common terms phone service over the Internet. If you have a reliable quality Internet connection and a healthy data network you can get phone service delivered through your Internet connection instead of from your local phone company.

      VoIP makes easy some things that are difficult to impossible with traditional phone networks. Incoming phone calls are automatically routed to your VoIP phone where ever you plug it into the Internet.
       Take your VoIP phone with you on a trip, and anywhere you connect it to the Internet, you can receive & make all of your business calls,
       Basically, it is another way of making phone calls, with the difference of making the calls sometimes cheaper than traditional phone lines. 
      The ‘phone’ part is not always present anymore, as you can communicate without a telephone set by integrating your cell phone or a soft phone app installed on your computer.
      Anchor can provide a very robust fully scalable Phone system for your business and in some cases save hundreds monthly for your business!


Hosted VoIP Saves Businesses Money

      Saving money is one of the most important features of Hosted VoIP phone systems. Legacy systems were expensive. Setup was intrusive, reconfiguring required time and physical system changes, and maintenance and repairs could be quite expensive. But with hosted VoIP systems, you not only save on the costs of installation, calls themselves are significantly less expensive. If your business makes a lot of international calls, hosted VoIP phone systems offer the savings you need to have a great phone system without a huge capital investment.


A Range of Call Features Is Supported

      All of the traditional call system features you expect are available in hosted VoIP systems, including call hold, call transfer, call hunt, conference calling, find me / follow me, and auto-attendant phone menus. You won't give up any of your favorite features by choosing hosted VoIP.


VoIP Scales Up or Down Easily

It's not always easy to predict how many phones you'll need over the next year, and if you have a traditional phone system, you have to estimate carefully to avoid spending money on phone lines you won't use. All this goes away with Hosted Telephone systems. With VoIP for your business, you can add a line as soon as you add a new employee, and when an employee leaves, you can easily reassign or remove the line. You always have the right number of phone lines for your needs.


Employees' Numbers Follow Them Wherever They Go

Are you rearranging or expanding your office space? Hosted VoIP phone systems let users access a convenient web portal to reconfigure the system at any time. Hosted VoIP phone systems are also terrific for businesses that have field workers or workers who travel a lot. Calls can be diverted to anywhere in the world due to cloud-hosted VoIP phone system features. 





* General Router Configuration Guidelines

The following check list offers some general settings that apply to most routers. These settings should create an optimal environment for VoIP interoperability.

Disable Application Layer Gateway (AKA – “SIP Awareness”)
Set UDP window timeout to 90 seconds
Disable STUN, ICE or any other local NAT traversal settings
Enable QoS for local devices

By IP address
By MAC address

Enable Bandwidth QoS (if available)

Set the upload speed of the internet connection. Router will prioritize based on the available bandwidth.

Create firewall policy if the local policy is blocking SIP and/or RTP.

Allow UDP port range 49152- 64512
Allow UDP+TCP port 5060

If your router is connected to broadband MODEM supplied by your internet service provider, it is possible that some or all of the above settings should be set within the supplied device as many MODEMs act as firewall/router devices. 

** Recommended Settings for SonicWall Firewalls


 *This configuration was made on a Sonicwall NAS 240 with Advanced OS*

Under VoIP settings:

Nothing turned on except Enable Consistent NAT


Under Network:

Create object for External IP address assigned to PBX (Public IP address)

Create object for Internal IP address of PBX (Private IP address)

Create object for all SIP provider IPs (,,

Create a NAT for 5060 UDP outgoing to a static IP

Create a NAT for 5060 UDP incoming to inside IP of PBX server (SIP)

Create a NAT for port 10000 to 20000 UDP incoming to inside IP of PBX server (RTP)

Under Firewall:

Create rule allowing 5060 from address object SIP (group with all SIP providers) to address object of external PBX (created in step 2 above). You can set it to be from anyone but it is more secure to be restricted.

Create rule allowing RTP from any address to external PBX (created in step 2 above).

Refresh your Registration on your PBX and then check your Interconnection tabwithin Flowroute Manager. You should now see your Active SIP Registration as coming from your public IP address on port 5060.