Transition Networks Just
 |
 Transition Networks J FE CF 04 NA JUST CONVERT IT MEDIA CONVERTER Kit  US $183.61
|
 Transition Networks Just Convert it Fast Ethernet Media Converter 1 X Rj 45 US $360.44
|
IP Telephony Over Wireless Networks
The advent of wireless broadband has put a new twist on peoples mobility and communications. Wireless broadband connections can take many different forms. From an extension of conventional wired networks in your home or office, to wireless coverage of entire metropolitan areas, to the proliferation of WiFi hotspots all over the world, the Internet truly makes the world a global place.
Wireless Broadband and IP Telephony
Companies like Clearwire and Mobilepro Corp are connecting college campuses, even whole cities to the Internet wirelessly. Using fixed point to point, point to multipoint, and non-line-of-site (NLOS) technologies, these companies can eventually cover areas of dense population that will rival the cellular networks.
Worldwide, even in remote locations, WiFi hotspots only need a little electricity and a satellite uplink to connect to the world.
Wireless broadband and IP telephony have the most potential in the small business and traveling community. A small business with branch offices spread around the country (or the world for that matter) could save considerably on their telecommunication expenses utilizing VoIP. As would the traveling salesperson staying at a far away hotel, more and more of which have their own wireless networks. Just pick a provider, find a hotspot and watch your phone bill drop.
IP telephony over wireless broadband is emerging as a viable alternative to the public switched telephone network (PSTN), and is even encroaching on the cellular communications industry. Whereas the big cellular networks put in place by companies like Sprint and Verizon have done a good job blanketing north America, and Europe, the cost to the consumer can be cut even more by utilizing the Internet to transport voice.
VoIP and the Cellular Networks
IP telephony is a disruptive technology, meaning that it has the potential to turn an existing market upside down. Imagine how the telcos felt when a long distance call for which they used to charge a dollar a minute can now be made for pennies. Needless to say, the babyb bells and mobile phone companies will resist this change, but as the technology evolves, adoption seems inevitable.
Just as the sound quality on cellular networks are generally less than land lines, massive adoption of mobile phones show that people are willing to tolerate loss of quality for convenience. Quality of sound over an IP connection can be anywhere from a dropped call to cell phone quality, to the equivalent of a land line connection, depending on network utilization.
The advantages of VoIP over conventional telephony are becoming clearer, but what would be the advantages of IP telephony over cellular phones? While both cell phone companies and the pure-play VoIP providers have monthly plans, internet phone companies do not charge more for prime time, and the monthly service charges are significantly less. Most mobile phone companies offer free nationwide long distance in the U.S., whereas Vonage, for example offers free calls throughout the U.S., Canada, Puerto Rico, and Europe.
International rates with VoIP are the lowest to be had, to some countries as low as 2-3 cents a minute for a call to a PSTN number. Calls to cell phones however, are charged at a higher rate.
WiFi Cell Phones
Essential to the widespread implementation of wireless VoIP is, of course, the hardware, the phone itself. While many pure play Internet phone companies have had WiFi telephones for a while, the ideal solution would be a cell phone that goes both ways. Companies like Truphone have furthered the cause by developing an Open Source application based on the widely accepted session initiation protocol (SIP), which allows a transition from the Internet to the PSTN.
Nokia, a leading manufacturer of cell phones, has developed a line of smart phones starting with its E60 series that is dual band and can switch between cellular and WiFi networks. Their latest innovation, the N80, combines all the latest technology and truly is a smart phone. These phones will automatically switch back and forth while roaming between cellular and WiFi networks, purportedly without dropping the call.
IP telephony over wireless networks is a technology just out of its infancy, and is yet to become wide spread. The cost effectiveness of routing voice packets over the internet as opposed to land lines, or even cellular networks, cannot be denied. But dont expect the telcos or the cellular phone companies to embrace this technology wholeheartedly until they can figure out a way to make a profit.
About the Author
Author Michael Talbert is a certified systems engineer and web designerwith over 7 years experience in the industry. For more information on Voice over IP Telephony, visit the website VoIP-Facts.net, or the VoIP Blog for up to date industry news and commentary.
|
|
Transition Networks / Transition Networks Just Convert-IT J/E-PSW-FX-03 Media Converter / J/E-PSW-FX-03-NA $190.87 Transition Networks - Transition Networks Just Convert-IT J/E-PSW-FX-03 Media Converter - J/E-PSW-FX-03-NA |
|
|
Transition Networks / JUST CONVERT IT MEDIA CONVERTER / J/FE-CF-04-NA $170.01 Transition Networks - JUST CONVERT IT MEDIA CONVERTER - J/FE-CF-04-NA |
|
|
Transition Networks / JUST CONVERT IT SA MEDIA / J/E-CX-TBT-02-NA $103.05 Transition Networks - JUST CONVERT IT SA MEDIA - J/E-CX-TBT-02-NA |
|
|
Transition Networks Just Convert-IT Fast Ethernet Media Converter $332.99 1 x RJ-45 1 x SC Duplex 100Base-FX 100Base-FX Single-mode Fiber 100Base-TX 100Base-TX Twisted Pair 2 Fiber J/FE-CF-04(SM) Just Convert-IT Just Convert-IT Fast Ethernet Media Converter Media Converter Transition Networks Transition Networks, Inc Twisted Pair www.transition.com |
|
|
Transition Networks External 25025 $29.53 Transition Networks External 25025 |
|
|
Transition Networks Just Convert-IT J/E-PSW-FX-03 Media Converter $166.99 1 x RJ-45 Network 1 x ST Network 1" Height x 3" Width x 3.90" Depth 1.24 Mile 10/100Base-TX 100Base-FX 2 The "Just Convert-It" Bridging Media Converter is an inexpensive, no frills way to extend the distance between connections with different speeds or duplex using fiber optic cable, while maintaining the same quality and reliability found on Transition's full-featured line of products. External J/E-PSW-FX-03 J/E-PSW-FX-03-NA Just Convert-IT Just Convert-IT J/E-PSW-FX-03 Media Converter Media Converter Transition Networks Transition Networks, Inc www.transition.com |
|
|
Transition Networks Just Convert-IT 100BASE-TX to 100BASE-FX Stand-Alone Media Converter $189.99 0.98" Height x 3" Width x 3.93" Depth 1 x LC 1 x RJ-45 1.24 Mile 100Base-FX 100Base-FX 1300 nm Multi-mode Fiber 100Base-TX 100Base-TX Twisted Pair 2 Provides LEDs for easy network monitoring. This media converter can extend distances between two twisted pair switches or between a switch and a server. Fiber J/FE-CF-04(LC) Just Convert-IT Just Convert-IT 100BASE-TX to 100BASE-FX Stand-Alone Media Converter Lifetime Media Converter Transition Networks Transition Networks, Inc Twisted Pair www.transition.com |
|
|
Transition Networks Just Convert-IT BNC To ST Media Converter $192.99 1 x BNC 1 x ST 1" Height x 2" Width x 2.20" Depth 1310 nm Single-mode Fiber 2 6.21 Mile NTSC PAL SECAM All video CCTV equipment It converts a CCTV signal from cameras to multimode fiber. No field adjustments are necessary. Wide input range power supply allows for multiple choices of power source including camera power supply. Coaxial Fiber J/VD-TX-01(SM)-NA Just Convert-IT Just Convert-IT BNC To ST Media Converter Lifetime Media Converter Transition Networks Transition Networks, Inc www.transition.com |
|
|
Transition Networks Just Convert-IT SC To BNC Media Converter $133.99 1 x BNC 1 x SC 1" Height x 4" Width x 3" Depth 2 3281 ft 850 nm Multi-mode Fiber NTSC PAL SECAM All video CCTV equipment It converts the optical signal back to an analog composite video signal. All conversion is performed in real time. No field adjustments are necessary. Wide input range power supply allows for multiple choices of power source including camera power supply. Coaxial Fiber J/VD-RX-01(SC)-NA Just Convert-IT Just Convert-IT SC To BNC Media Converter Lifetime Media Converter Transition Networks Transition Networks, Inc www.transition.com |
|
|
Transition Networks Just Convert-IT ST To BNC Media Converter $194.99 1 x BNC 1 x ST 1" Height x 4" Width x 3" Depth 1310 nm Single-mode Fiber 2 6.21 Mile NTSC PAL SECAM All video CCTV equipment It converts the optical signal back to an analog composite video signal. All conversion is performed in real time. No field adjustments are necessary. Wide input range power supply allows for multiple choices of power source including camera power supply. Coaxial Fiber J/VD-RX-01(SM)-NA Just Convert-IT Just Convert-IT ST To BNC Media Converter Lifetime Media Converter Transition Networks Transition Networks, Inc www.transition.com |
|
|
Transition Networks Just Convert-IT BNC To SC Media Converter $137.99 1 x BNC 1 x SC 1" Height x 2" Width x 2.20" Depth 2 3281 ft 850 nm Multi-mode Fiber NTSC PAL SECAM All video CCTV equipment It converts a CCTV signal from cameras to multimode fiber. No field adjustments are necessary. Wide input range power supply allows for multiple choices of power source including camera power supply. Coaxial Fiber J/VD-TX-01(SC)-NA Just Convert-IT Just Convert-IT BNC To SC Media Converter Lifetime Media Converter Transition Networks Transition Networks, Inc www.transition.com |
|
|
Transition Networks Just Convert-IT Media Converter EN 1Gbps SC(Multi) + RJ-45 850nm JGECF01SX $287.91 Transition Networks Just Convert-IT Media Converter EN 1Gbps SC(Multi) + RJ-45 850nm JGECF01SX |
|
|
Transition Networks Just Convert-IT J/FE-CF-04(SC) Fast Ethernet Media Converter JFECF04SCNA $164.72 Transition Networks Just Convert-IT J/FE-CF-04(SC) Fast Ethernet Media Converter JFECF04SCNA |
|
|
Transition Networks Just Convert-IT J/FE-CF-04(LC) Fast Ethernet Media Converter JFECF04LCNA $214.03 Transition Networks Just Convert-IT J/FE-CF-04(LC) Fast Ethernet Media Converter JFECF04LCNA |
|
|
Transition Networks Just Convert-IT 100BASE-TX to 100BASE-FX Stand-Al $352.47 Simply upgrade twisted pair networks to fiber and end the problems of difficult installations associated with traditional converters. The Just Convert-IT line of media converters is there for when you want an inexpensive, no frills converter that offers the same quality and reliability as our full-featured line of products. Manufacturer: Transition Networks, Inc Manufacturer Part Number: J/FE-CF-04-NA Manufacturer Website Address: www.transition.com Brand Name: Transition Networks Product Line: Just Convert-IT Product Name: Just Convert-IT 100BASE-TX to 100BASE-FX Stand-Alone Media Converter Product Type: Media Converter Media & Performance: Media Type Supported: Twisted Pair Media & Performance: Fiber Mode Supported: Multi-mode Network & Communication: Network Technology: 100Base-TX Warranty: Standard Warranty: Lifetime |
|
|
Transition Networks Meeting Bracket $17.99 5 Year Transition Networks Ethernet Switch: MIL-SM8002TG MIL-SM4004TG MIL-SM802GAF MIL-RMSM8 Meeting Bracket Mounting Bracket Transition Networks Transition Networks, Inc www.transition.com |
|
|
Transition Networks / Transition Networks 100BASE-TX to 100BASE-FX Media Converter / E-100BTX-FX-05(LH) $824.71 Transition Networks - Transition Networks 100BASE-TX to 100BASE-FX Media Converter - E-100BTX-FX-05(LH) |
|
|
Transition Networks / Transition Networks S3230-1040 Media Converter / S3230-1040-NA $852.94 Transition Networks - Transition Networks S3230-1040 Media Converter - S3230-1040-NA |
|
|
Transition Networks / Transition Networks S3220-1040 Media Converter / S3220-1040-NA $694.58 Transition Networks - Transition Networks S3220-1040 Media Converter - S3220-1040-NA |
|
|
Transition Networks / Transition Networks 1000Base-SX SFP Module / TN-J4858C $196.65 Transition Networks - Transition Networks 1000Base-SX SFP Module - TN-J4858C |
|
|
Transition Networks / Transition Networks 100Base-FX/OC-3 SFP Module / TN-SFP-OC3S $202.63 Transition Networks - Transition Networks 100Base-FX/OC-3 SFP Module - TN-SFP-OC3S |
|
|
Transition Networks / Transition Networks Wall Mount Bracket / WMBS $26.62 Transition Networks - Transition Networks Wall Mount Bracket - WMBS |
|
|
Transition Networks / Transition Networks 100BASE-TX to 100BASE-FX Media Converter / E-100BTX-FX-05(SC) $255.18 Transition Networks - Transition Networks 100BASE-TX to 100BASE-FX Media Converter - E-100BTX-FX-05(SC) |
|
|
Transition Networks / Transition Networks 100BASE-TX to 100BASE-FX Media Converter / E-100BTX-FX-05(SM) $451.28 Transition Networks - Transition Networks 100BASE-TX to 100BASE-FX Media Converter - E-100BTX-FX-05(SM) |
|
|
Transition Networks / Transition Networks Twisted Pair to Fiber Media Converter / CGETF1039-110 $462.78 Transition Networks - Transition Networks Twisted Pair to Fiber Media Converter - CGETF1039-110 |
|
|
Transition Networks / Transition Networks C3110-1013 Media Converter / C3110-1013 $446.14 Transition Networks - Transition Networks C3110-1013 Media Converter - C3110-1013 |
|
|
Transition Networks / Transition Networks C2210-1013 Media Converter / C2210-1013 $307.01 Transition Networks - Transition Networks C2210-1013 Media Converter - C2210-1013 |
|
|
Transition Networks / Transition Networks CSETF1013-205 Media Converter / CSETF1013-205 $189.52 Transition Networks - Transition Networks CSETF1013-205 Media Converter - CSETF1013-205 |
|
|
Transition Networks / Transition Networks 100Base-TX to 100Base-FX Media Converter / CFETF1013-110 $225.08 Transition Networks - Transition Networks 100Base-TX to 100Base-FX Media Converter - CFETF1013-110 |
|
|
Transition Networks / 10/100/1000BTX TO 1000BASE-X / SGFEB1040-120 $575.3 Transition Networks - 10/100/1000BTX TO 1000BASE-X - SGFEB1040-120 |
|
|
Transition Networks FAN MOD CPSFM200 $123.3 Transition Networks FAN MOD CPSFM200 |
|
|
Transition Networks Blank Panel CPSFP200 $9.66 Transition Networks Blank Panel CPSFP200 |
|
|
Transition Networks RS485TERMINALBLOCKTO1310NM SMFSC20KMMEDIACONVERTER SRS4F3214100NA $414.52 Transition Networks RS485TERMINALBLOCKTO1310NM SMFSC20KMMEDIACONVERTER SRS4F3214100NA |
|
|
Transition Networks Just Convert-IT J/E-PSW-FX-03(SC) Media Converter $166.99 1 x RJ-45 Network 1 x SC Network 1" Height x 3" Width x 3.90" Depth 1.24 Mile 10/100Base-TX 100Base-FX 2 The "Just Convert-It" Bridging Media Converter is an inexpensive, no frills way to extend the distance between connections with different speeds or duplex using fiber optic cable, while maintaining the same quality and reliability found on Transition's full-featured line of products. External J/E-PSW-FX-03(SC) J/E-PSW-FX-03(SC)-NA Just Conver-IT J/E-PSW-FX-03(SC) Media Converter Just Convert-IT Media Converter Transition Networks Transition Networks, Inc www.transition.com |
|
|
Transition Networks Just Convert-IT J/E-PSW-FX-03(SM) Media Converter $317.99 1 x RJ-45 Network 1 x SC Network 1" Height x 3" Width x 3.90" Depth 10/100Base-TX 100Base-FX 12.43 Mile 2 The "Just Convert-It" Bridging Media Converter is an inexpensive, no frills way to extend the distance between connections with different speeds or duplex using fiber optic cable, while maintaining the same quality and reliability found on Transition's full-featured line of products. External J/E-PSW-FX-03(SM) J/E-PSW-FX-03(SM)-NA Just Conver-IT J/E-PSW-FX-03(SM) Media Converter Just Convert-IT Media Converter Transition Networks Transition Networks, Inc www.transition.com |
|
|
Transition Networks Just Convert-IT J/FE-CF-04(SM) Fast Ethernet Media Converter - 1 x RJ-45 , 1 x SC - 100Base-TX, 100Base-FX $374.1 Transition Networks Just Convert-IT J/FE-CF-04(SM) Fast Ethernet Media Converter - 1 x RJ-45 , 1 x SC - 100Base-TX, 100Base-FX |