Some may remember the days of 1200 baud packet that was quite popular in the 1990s. This technology is now present in APRS, with even a hint of low-speed data showing up within the VHF and UHF bands via D-STAR enabled radios as well as telemetry.

For those that have radios such as the Icom ID-1 it is possible to have 100kbps data from the Internet available in your vehicle. In order to do this a base station with a ID-1 or a D-STAR 1.2GHz data repeater is required.

Most of us have some form of a wireless network in our home or business that operates via the 802.11 standards. Did you know that this same equipment can be used in Amateur Radio with higher RF power and higher gain antennas? Within Amateur Radio this technology is known as High Speed Multi Media or HSMM. The primary bands for HSMM are 2400, 3300 and 5800 MHz. The 902 MHz band can also be used for high speed data. One of the key advantages to HSMM is in its nature of being able to take a off-the-shelf wireless network adapter and access point add a higher gain antenna to them, and for longer range RF amplifiers can be added under FCC Part 97 rules.

Imagine having access to high speed video, IP-phone and Data Connectivity in your vehicle,or during special events and emergency incidents being able to provide data, video and voice to the agencies served. As well as providing last mile coverage into a disaster area.

Did we mention telephone service? With the development of Internet telephone services as well as telephone servers such as Asterisk which provide flexible interoperability between PSTN, Internet Phone and Radio dial tone can be presented along with the last mile capabilities of High Speed Multi Media create a resource that can be highly beneficial to the community and the nation.

What is next in the Digital Frontiers? As it was in the 1800s with the migration West the same is occurring with the digital migration. With networks such as Asterisk the migration is made easier as analog and digital technology is made one. On the Internet you can find more information about Asterisk and HSMM at http://www.asteriskradio.net and http://www.hsmm.info

Through the years there have been many that have asked how to hook up Asterisk PBX and RF Gateway servers and then tie these resources in with DARPA and DSTAR along with other technology resources. We are happy that we are able to assist in getting resources online and operational. Yet the cost to do the research and provide fixed infrastructure has a price tag to it that a single individual or just a couple of people shouldn’t have to cover the cost for everyone else. Yes, funds are indeed tight and they may end up being tighter from the way things are going in the “halls of leadership.”

When many come together and share the cost the overall burden is lighten, as it has been proven in the past when many work together for a common good (via cooperative efforts) the cost do indeed go down for everyone. And quality of service can improve to the point that technology development and training can progress too.

So the challenge that I present to you is to consider donating to ALERTradio ERC and Asterisk Radio Networks. Your help is greatly appreciated.

Mars – N0PCO

Already have CoTS-1 configured and interfaced into the PBX, still need to configure up some HSMM wireless links that can be used for point-to-point and point-to-multiple point applications.

711 is the nationwide telephone number for accessing Telephone Relay Service (TRS).    TRS permits persons with a hearing or speech disability to use the telephone system via a text telephone (TTY) or other device to call persons with or without such disabilities.

Making TRS Calls

If you want to call someone using TRS, use your TTY, or dial 711 on your telephone, and you will automatically be connected to a TRS operator. If you’re a TRS user traveling out of state and want to make a call, there is no longer a need to learn the state’s TRS provider’s telephone number.  Just dial 711. It’s fast, functional, and free.

The 711 code is not just for use by persons with disabilities. Both voice and TRS users can initiate a call from any telephone, anywhere in the United States, without having to remember and dial a seven or ten-digit access number. For persons who have been using TRS for years, the convenience of dialing three digits is obvious.

711 dialing access does not work for Video Relay Service (VRS) or Internet Protocol (IP) Relay calls, because such calls are initiated through the Internet. Hearing persons initiating a VRS or IP Relay call may do so by calling a provider’s 800 number.

Dialing 711 From A Private Branch Exchange

FCC rules require all telephone companies (including wireline, wireless, and payphone providers) that operate private branch exchanges (PBXs) to implement three-digit 711 dialing for access to TRS. A PBX is a private telephone system within an organization that switches calls between internal users and allows users to share a certain number of external phone lines. PBX operators are required to modify their equipment to enable 711 dialing to ensure that everyone benefits from abbreviated dialing and consumers have easy access to TRS.

Callers from locations served by PBXs may be required to dial 9 or another prefix before entering the 711 code or placing an outside call. The FCC encourages PBX operators to work with telephone companies and TRS providers to facilitate 711 dialing for users.

The FCC recently determined that providers of interconnected Voice over Internet Protocol (VoIP) service also must offer 711 abbreviated dialing.

911 and 711

Dialing 911 is the most familiar and effective way Americans have to find help in an emergency. The Americans with Disabilities Act (ADA) requires all Public Safety Answering Points (PSAPs) to provide direct, equal access to their emergency response services for people with disabilities who use TTYs or other devices. Therefore, in the event of an emergency, TTY users should call 911 directly, and not make a TRS call via 711.

Why is 711 TRS important to us?

As a communications resource we need to be ready to handle traffic that may need to be delivered to a person that may have hearing or speech.  Via 711 TRS we will be able to deliver messages in a more timely fashion when the situation arises.   We also need to let people know that the service exists.

Additional Relay Services

IP Relay – Internet Protocol Relay

VRS -Video Relay Service

Information Resources

711 Telephone Relay Service for the Deaf

FCC Dial 711 for Telecommunications Relay

i711.com

ip-relay.com

]]> http://asteriskradio.net/wp/2009/05/03/dialing-711via-pbx/feed/ 0 http://asteriskradio.net/wp/2009/04/29/digital-integration-to-pstn/ http://asteriskradio.net/wp/2009/04/29/digital-integration-to-pstn/#comments Wed, 29 Apr 2009 04:36:28 +0000 admin http://asteriskradio.net/wp/2009/04/29/digital-integration-to-pstn/ A new digital project is coming up that will provide a method to push digital radio traffic to SIP / IAX2 phones as well as PSTN. Testing is in progress now, more details coming soon.

DARN defined as “to mend by weaving thread across a gap” that is what is being done. Those that want to see flexibility will go with the DARN approach, as a improvement while there will be others that find it to be just annoyance. DARN definitely fits the new Digital Analog Radio Networks.

Sometimes logic can indeed be simple (send in most potentially linkable exchange).

The Digital Analog Radio Network web site is located at http://darnsimple.net