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(Click for frequent words.) 62 OpCo 59 Tasmanian NBN 58 Asiaspace 58 Helios Towers Africa 57 NasionCom 57 Time dotCom Bhd 57 Aksh Broadband 57 BPL Cellular 56 GPON FTTH 56 Hotgate 56 Spectranet 56 NexTone IntelliConnect System 56 Nuera Communications 55 Alheri Engineering 55 China Telecom CHA.NYSE 55 Quippo Telecom 55 YDI Wireless 55 Newtel 55 SnowShore 55 Motorola Canopy wireless 55 UFB initiative 55 Selects Openwave 55 Telefonia Dialog 55 Renova Media 55 MNP Interconnection 55 M'sharie 55 FutureTrade Securities 55 PointRed 55 Nextlink Wireless Inc. 55 EJV 55 Transtel 55 HCL Infinet 54 Ubee Interactive 54 Egypt EGX ETEL.CA 54 Phusion Laboratories 54 InfoHighway Communications 54 Worldbid 54 ST Telemedia 54 VoB 54 Celcom Malaysia Berhad 54 FibreCo 54 Mr. Cecin 54 Nucleus Connect 54 CMTSs 54 Spice Televentures 54 IPMobile 54 Swiftnet 54 iVantage 54 Télébec 54 providers BSPs 54 Sino Fibre 54 Binariang 54 operator MVNO 54 Sinuwave 54 Binariang GSM 54 YIWA 54 RPG Cellular 54 Arcwave 54 Siemens SURPASS 54 Reggefiber 54 Etihad Atheeb 54 ComTel 54 Telekom Malaysia Berhad 53 ECI Hi FOCuS 53 GTel 53 Wireline Broadband 53 Roaming Hub 53 Comverse MMSC 53 NBN Tasmania 53 Transtelecom 53 EdgeMarc Network Services 53 UltraNet 53 ECNS 53 Internet Subscribers/# Inhabitants 53 Time dotCom 53 Label Switching 53 Phototron 53 LMDS spectrum bands 53 Spice i2i 53 Circuit Emulation 53 SkyTerra Communications 53 Covad DSL 53 SATLYNX 53 NasionCom Holdings Bhd 53 Applied Magnesium International 53 Essar Teleholdings 53 Kabelcom 53 Multilinks 53 FHB Formation LLC 53 Calix C7 53 ISP Easynet 53 Brasilcel NV 53 Hawkpoint Partners Limited 53 IETF SIP 53 Hutchison Telecommunications Hong Kong 53 NetMix Broadcasting Network 53 Essar Spacetel 53 Telekom Malaysia Bhd. #.KU 53 NIXI 53 LFCs 53 Focal Communications 53 Celcom Malaysia Bhd. 53 ML# Ethernet 52 Powertek 52 Dtac 52 YahClick 52 Lanco Amarkantak 52 Shyam Sistema 52 GPON Gigabit Passive Optical 52 ntl Broadcast 52 constitute discloseable transaction 52 Special Situations Funds 52 Contactel 52 Alca Lu 52 Debenture Financing 52 CitySpring 52 ClearWave 52 QMLP 52 Mahanagar Telephone 52 Keymile 52 AlgoSpan 52 IPlay3 52 DirecTECH 52 Volo Communications 52 Measat Global 52 SkyTerra Communications Inc. 52 REDtone 52 NetSpira 52 Brookfield Infrastructure Partners 52 TIME dotCom 52 Corbina Telecom 52 Built Operate Transfer BOT 52 FTTN 52 Econet Wireless Kenya 52 TERRA SW 52 TDX Independence Funds 52 TOT Corp 52 Ngensolutions LLC 52 Fibrecity Holdings 52 Kbro 52 Cahya Mata 52 Geomark 52 Unicom Netcom 52 OpenReach 52 China Unicom CDMA 52 JVCs 52 China Tietong 52 Unbundled Network Element 52 WTTIL 52 Reliance Webstore 52 Restructured Canwest 52 Allianz Infratech 52 Casema 52 Mind CTI 52 VOXBOX 52 Broadnet AG 52 SIP IX 52 redCity 52 Tatung InfoComm 52 Beeline trademark 51 IDT Spectrum 51 Transfer BOOT basis 51 MVNE platform 51 Commnet Wireless LLC 51 Macquarie Infrastructure MIC 51 HFCL Infotel 51 Cequel Communications 51 PT Telekomunikasi Indonesia Tbk 51 Converged Messaging 51 Amazonia Celular 51 CNGI 51 MESB 51 Palapa Ring 51 Celtel Tanzania 51 Lucent Accelerate 51 Excelcomindo 51 Ucom 51 Smile.Communications Ltd. Nasdaq SMLC 51 ARRIS C4 CMTS 51 Thermo Credit 51 Nam Fatt 51 DIGITALK Multiservice Platform 51 MSC Servers 51 Selects Infinera 51 Telkom Neotel 51 BCGI Shareholders 51 Veroxity 51 Stock Purchase Agreements 51 KNR Constructions 51 Schwabo 51 PT Natrindo Telepon Seluler 51 GIG BE 51 Higher Bandwidth Incentive 51 AssetHouse 51 IXC 51 XIUS 51 TransTRAK 51 mTouche 51 SmartSwitch Nigeria 51 Ontus 51 VSPP 51 B6 Sigma 51 Easyknit 51 Peremba Construction 51 Cirilium 51 Comstar Regions 51 NGNBN 51 CCMJ 51 Unitech Infra 51 Ekovest 51 Nexperience 51 UASL license 51 Convergia 51 GZI Transport 51 Iinet 51 Z5 Technologies 51 Japan Cablenet 51 Redback SmartEdge routers 51 Carrius 51 Recapital 51 Telizon 51 AirGate MMS 51 Unefon Holdings 51 FREEDOM4 51 Petrofac Emirates 51 Vialtus Solutions 51 3G WCDMA HSPA 51 Enhanced Uplink 51 NBNCo 51 TASE MATV 51 SpeechSwitch 51 IPStar 51 WAN Router 51 CanvasM 51 iPACT 51 Communications Vodafone Essar 51 Inukshuk Wireless Partnership 51 XETRA SIE 51 Tigo Tanzania 51 Session Initiated Protocol SIP 51 Exatel 51 Platform UNE P 51 Ethernet Backhaul 51 MSANs 51 mCel 51 Multikabel 51 ADSL1 51 deploying uniquely architected 51 Hutchison CAT 51 BTVL 51 Hexacom 51 ADSL VDSL 51 GT Solar Holdings 51 Zamzamzairani 51 ILD NLD 51 Concordis Capital 51 QoStream 51 NEWCO 51 Packet Core 51 Amcom Telecommunications 51 KinderHawk Field Services 50 Hemen Holding 50 IDX TLKM 50 NAOSC 50 Idea Cellular Tata Teleservices 50 Green Packet Berhad 50 QTIL 50 Malaysia Axiata 50 Broadband Routers 50 CDMA femtocells 50 Melewar 50 PBL Melco 50 INFRAX 50 OpCos 50 Optus HFC 50 Sotelgui 50 TIME dotCom Bhd 50 LMDS licenses 50 BFKT 50 Femtocell Solution 50 MSAT satellites 50 Thomson Cirpack 50 PIPE Networks 50 CDMA iDEN 50 Nigeria Nitel 50 Videocon Telecommunications 50 CDMA 1x 50 NLD ILD 50 Telekom Malaysia TM 50 Naked ADSL2 + 50 HNTE 50 Scailex Corporation 50 T1 circuits 50 InfraCo 50 Voxitas 50 LMDS 50 IceNet 50 VMAX Telecom 50 Preferential Allotment 50 Nanostart Asia 50 LoopStar 50 Maxis Celcom 50 InterNotes 50 3Com Huawei 50 Hybrid Fiber Coax 50 NaaS 50 IntraPower 50 Build Operate Own 50 Tontine Capital 50 Transfer BOOT model 50 MainOne 50 Winncom 50 Tele2 Netherlands 50 Opticomm 50 EchoStar DirecTV 50 Alvarion WiMAX 50 EQT V 50 Alcatel Submarine 50 IntelliConnect System 50 SpectrumCo 50 Hi3G 50 DTH IPTV 50 NKID 50 CHL.NYSE 50 Telstra ASX TLS 50 Rural UniFi 50 RailTel 50 Etisalat DB Telecom 50 Sprint Nextel iDEN 50 Cequel III 50 OSA Parlay 50 Sunway Holdings 50 webMethods Portal 50 Terawave 50 Nasioncom 50 wholesale bitstream 50 HoldCo 50 regional energos 50 TeraSpan 50 Hybrid Fiber Coaxial 50 CIMB Wealth Advisors 50 GSM/3G 50 Oremex Gold 50 GlobeTel Wireless 50 Albtelecom 50 TalkTalk AOL 50 Tru2Way 50 LSE PCCD 50 AMP NETCONNECT 50 Long Distance NLD 50 OAO Comstar United 50 MPLS Multiprotocol Label Switching 50 Biomerge 50 Comba Telecom Systems 50 GoldLink 50 Beetaloo Basin Project 50 LongReach 50 BreezeACCESS 50 PolyNovo 50 digital headend 50 AirPair 50 ChinaComm 50 StarVox 50 Vsat 50 WLR3 50 CRa 50 Poland Polkomtel 50 GIPL 50 iXTools 50 Bina Puri Holdings 50 International Limited PwCIL 50 FTTN network 50 Movil Access 50 Zhone MALC 50 Fixed Wireless 50 Pseudo Wire 50 WFOE 50 TelePlus Wireless 49 Maroc Connect 49 QTel 49 Starfish Pipeline 49 NPTH 49 ImmersiFind TM 49 MXtv 49 RWE Dea Norge AS 49 IP VPN MPLS 49 MyCall 49 Covad Wireless 49 Telemig Celular SA 49 Nortel UMTS 49 TelePacific Communications 49 Bahwan Engineering 49 StarOne 49 SkyBridge Wireless 49 MiriATE 49 MTD Infraperdana 49 PeterStar 49 VTLWaveNet 49 ntl Incorporated 49 quadplay 49 BBned 49 unbundles 49 Alberta SuperNet 49 CommSecure 49 Alinta AGL 49 Hexagon Measurement Technologies 49 Solomon Telekom 49 CypressTree 49 Kencana Petroleum 49 Sparkplug Communications 49 Eutelsat Tooway 49 NYSE TLK 49 Telikom PNG 49 BioPhausia 49 Tuas Power 49 VoiceOne 49 Cesky Mobil 49 newco 49 UnoMobi 49 Sistema Shyam Teleservices Dishnet 49 Skyy Fi 49 RTO Financing 49 GSM WCDMA HSPA 49 groundbreaking Palm webOS 49 STCSTC 49 TGN Intra Asia 49 Euroweb 49 softswitch architecture 49 OSMINE 49 GulfTerra Energy Partners 49 Enerchina 49 PacketCable compliant 49 Fastmobile 49 Hitachi AMN# 49 AccuROAM 49 Maroc Télécom 49 MTNL BSNL 49 Ableauctions 49 Viom 49 Parasun 49 Conversent 49 eAccess Ltd. 49 PT Excelcomindo Pratama Tbk 49 Agile Optical 49 APBW 49 BEE Holdco 49 MIRS Communications 49 Cortelco 49 Optical Fibers 49 WiMAX Backhaul 49 NGN IMS 49 IXCs 49 Special Purpose Vehicles 49 Ubiquity SIP Application Server 49 Frame Relay ATM 49 SwitchCore 49 Television Cooperative NCTC 49 Apprise Enthusiast Media 49 Tenderers 49 bonds TOBs 49 NG BOSS 49 PT Pratama 49 Nyse Technologies 49 Lightsquared 49 WLL CDMA 49 ZyEdge 49 PowerTel 49 asubsidiary 49 Qualified Institutional Buyers QIB 49 APT Satellite 49 EVN Telecom 49 KKR PEI 49 fiber coaxial 49 SmarTone 49 PSTN interconnection 49 3G/WCDMA 49 CombiMatrix Diagnostics 49 Optic fiber 49 IPTV Middleware 49 Theglobe.com 49 Broadband Telephony 49 juristic entity 49 MIIF 49 CDMA femtocell 49 TraceSpan 49 Ipstar 49 Versatel Networks 49 Shaul Elovitch 49 SkyStream Mediaplex 49 ALAXALA Networks 49 Tele Danmark 49 Thintana 49 selects Alcatel 49 mr holland brown 49 ESML Intressenter AB 49 SDH Synchronous Digital Hierarchy 49 1Net 49 Tikona 49 CableTel 49 Telecom Italia Fastweb 49 cystic fibrosis transmembrane 49 SS7 ATM 49 BQT Satellites 49 MasterKey 49 Holdings CFH 49 Azimuth Opportunity 49 mmwave 49 Taiwan Chunghwa Telecom 49 CKLS 49 Lucent IMS 49 Selangor Dredging 49 Boulben 49 APA Cables & 49 TalkSwitch resellers 49 Armentel 49 Coolpad Communications 49 ILECs CLECs 49 Teledata Informatics 49 Dhanus Technologies 49 eBworx 49 Access Node 49 Foxtel Austar 49 ACDU 49 amalgamated entity 49 Network i2i 49 Leap RevChain 49 foundational patents 49 Wavenet 49 Telebras 49 Corbal 49 IDFC Projects 49 M2 Telecommunications 49 TrendChip 49 BSNL MTNL 49 Juniper Networks EX# Ethernet 49 Digicel BVI 49 NetWORKS 49 Asymmetric Digital Subscriber 49 AOL Pipex 49 USALs 49 VCom 49 Oger Telecoms 49 Cirilium India 49 Telrad Networks 49 JVCo 49 iXTools ASP 49 Kaashyap Technologies 49 AES Transpower 49 Inyosi 49 Melati Ehsan 49 TYN 49 W CDMA 3G 49 DDJET 49 McDATA Eclipse 49 Networx Enterprise contract 48 TTI Team 48 GoBeam 48 Mesdaq listed 48 Acquiror 48 Emitel 48 Diller IAC 48 Senao 48 Ltd. Nasdaq PTNR 48 Connective Games 48 Uni CHEM 48 KES Holding 48 Bharti Infotel 48 Gigabit PON 48 Routers Switches 48 Dependable HomeTech 48 Tele Norte Leste 48 cable MSO 48 Essar Telecom 48 Tak Investments 48 BALtrans 48 UEM Land Holdings 48 TELNY 48 sentitO 48 Next Generation Messaging 48 Bernama Telekom Malaysia 48 Railtel 48 InZon 48 Cirrus Softswitch 48 ITHL 48 Rotary Vortex 48 SBC ATT 48 Hi FOCuS TM 48 Uni Fi 48 Aztelekom 48 InfoHighway 48 Bell Nordiq Group 48 Scartel 48 PanTel 48 Proposed Arrangement 48 iPSTAR 48 Panva 48 Alaska DigiTel 48 ASTRA 5A 48 MoIP 48 Millicom Tigo 48 Limited HKBN 48 ACeS 48 CenturyTel Embarq 48 DS1 DS3 48 BQT Solutions 48 Fintur Holdings 48 Revolutionary Guard Etemad 48 Coordinate Technologies 48 Inc. OTCBB FGWC 48 BCIP 48 MiTV 48 IPTV VoD 48 TheSUBWAY intends 48 symmetric DSL 48 VCEG 48 VocalTec VoIP 48 speed broadband HSBB 48 Cypress Sharpridge 48 Infotek 48 IOL Broadband 48 Bredbandsbolaget 48 Vodafone Essar Ltd 48 Alligato 48 AmFinance 48 Panyu Cable 48 Telanetix AccessLine 48 Interexchange Carrier 48 Quintum Tenor 48 Bhilwara Energy 48 FTTH rollout 48 RPG Transmission 48 Gigabit Ethernet Passive Optical 48 Proposed Takeover 48 DSL cable modem 48 Stockholder Rights Agreement 48 Neoenergia 48 Cell Kinetics 48 Mobif 48 IVI Communications 48 bitstream access 48 NBN Co 48 WebLink Wireless 48 Zhejiang Unicom 48 Mineralfields Group 48 Advant e via 48 ProShares Ultra ETFs 48 Mimos Bhd 48 Megapath 48 LambdaDriver WDM 48 Reporting Issuer 48 WestNet 48 SR Telecom symmetryMX 48 NetWay 48 Nitel Mtel 48 Deploys Acme Packet 48 Tikcro 48 IntelsatONE 48 Singapore ST Telemedia 48 telco 48 Multiregion 48 Wholly Foreign 48 Intermediation 48 MTP Ventures 48 O3b 48 DMB TH 48 iDen 48 Indus Towers 48 #GHz spectrum 48 PeerTV 48 Calix C7 Multiservice Access 48 Matav Cable Systems 48 Seamico 48 Yamal LNG 48 DEXUS 48 neuf Cegetel 48 G9 consortium 48 Nokia C7 Deals 48 Wave7 48 Vitelity 48 Asterisk Appliance 48 Tensleep Wireless 48 GlobalConnect 48 Chengdu Putian Telecommunications 48 Media Nusantara Citra 48 Ekuinas 48 DSLAM rollout 48 Tata VSNL 48 Shudong Xia 48 VolP 48 Enlight Media 48 BatelcoBatelco 48 Satelindo 48 ASX IIN 48 GSM UMTS CDMA 48 Webphone 48 IPITEK 48 underwriters overallotment 48 BroadWorks ® 48 node FTTN network 48 Intelig 48 Digi TransPort 48 Dishnet 48 IDACOMM 48 Telecomunications 48 xPON 48 Prepaid Roaming 48 AN #i broadband 48 CableLabs PacketCable 48 Sanra Software 48 Ossen Innovation 48 Ensyn Corp. 48 MPLS Multi 48 Broadband Infraco 48 metro ethernet 48 joint venture Sinovac Dalian 48 incumbent telco 48 iDirect Evolution platform 48 Ambit Properties 48 IPLC 48 KLCCP 48 Jetstar tm 48 mStage 48 VAI Partners 48 Serving GPRS 48 Woosh Wireless 48 BSNL Bharat Sanchar 48 Usaha Tegas Sdn Bhd 48 network operator MVNO 48 Affin Merchant Bank 48 HFCL 48 VoIP Gateways 48 Equens Italia 48 DSLAMs 48 Frankfurt SIE 48 Cellpoint 48 Yanchang Petroleum Group 48 Powertel 48 ICO Global 48 Silcar 48 PDH SDH 48 MyCaller 48 Chuan Hup 48 Integral Axon 48 BigAir 48 Cumulus Media Partners 48 PTK Centertel 48 Share Incentive Plan 48 SHDSL 48 Proficiency Collaboration Gateway 48 demerged entity 48 e Mobin 48 Penang monorail 48 Redline WiMAX 48 Teletalk Bangladesh 48 SerComm 48 WiNetworks 48 competitor CyberPatrol 48 Kien Huat 48 Bouygues Telecom Caraibe 48 IElement 48 e Sahulat 48 ADSL SDSL 48 Pivotel 48 Hutchison Whampoa Limited 48 Covaro 48 Zeugma Systems 48 Fibre Optic 48 PCCW HKT 48 COMSTAR United 48 LMDS spectrum 48 HP RealTime Charging 48 FlexLight 48 ONUs 48 mSwitch 48 LightSoft 48 Ettihad Etisalat 48 Khanjee 48 Malaysian Plantations 48 Commnet 48 EVPL 48 Network Operators MVNOs 48 Vodafone LON VOD 48 Investpro 48 China Railcom 48 DigiBee 48 Sevan Drilling 48 SFP transceivers 48 Radiotelephone 48 PetroCom 48 #.#Ghz spectrum 48 SingPower 48 Ancillary Terrestrial Component ATC 48 Provisioning Platform 48 DSL T1 48 Solargiga Energy 48 Interactivity Suite 48 TCNZ 48 Headends 48 turnkey EPC 48 DiGi.Com 48 Telemig Celular Participacoes SA 48 Bharat Sanchar Nigam BSNL 48 CAD#m [002] 48 telcos 48 Enterasys Matrix 48 Zad Mobile 48 SUBAYE 48 Algerie Telecom 48 Celltick LiveScreen Media 48 Jerneh 48 Proprius Pharmaceuticals 48 Celcom Axiata Bhd 48 Wireless Modem Router 47 Aksh Optifibre 47 TrueMove 47 EasyCall 47 TeleGuam Holdings 47 EASSy 47 PPIFs 47 AGHL 47 Nextnation 47 unbundled DSL 47 FLDM 47 Senoko Power 47 #MHz spectrum [002] 47 Amanah Raya 47 Paris CGEP PA 47 Kumpulan Europlus 47 Route1 TruOFFICE 47 Sistema Shyam 47 CloseCall 47 HomePlug AV adapter 47 China Merchants DiChain 47 NetDeposit LLC 47 Bloomberg Tradebook LLC 47 NetRing 47 Substantial Issuer Bid 47 WRASP 47 Alphion Corporation 47 Speedus 47 SkyEdge broadband 47 SKR BPO Services 47 MergeCo 47 NPPN 47 Innovision Shares 47 Cellular Backhaul 47 Fiberail 47 Liang Fang Pharmaceutical 47 muxponder 47 Escotel 47 PGCR 47 VoCable 47 SubCom 47 LATAM Airlines Group 47 WestNet Rail 47 foreThought.net 47 Movaz 47 Picchio Pharma 47 SS7 signaling 47 3GPP IMS 47 Telkom Flexi 47 Helios Towers 47 CyberTel 47 BCorp 47 iHug 47 Allgas 47 MPLS backbone 47 Lucent Stinger 47 Camtel 47 Mobifon 47 Eutelsat Communications SA 47 Converged Billing 47 accredited registrar 47 FTTH FTTP 47 EWE TEL 47 STAG Industrial 47 NextGenTel 47 Numerex DNA 47 IP1 47 3G/HSPA network 47 Terrestar 47 accelerated renounceable entitlement 47 Vodafone Essar Bharti Airtel 47 Northwest Bancorp MHC 47 Reef Subsea 47 Routing Platform 47 T Mobile Slovensko 47 PSE SPTT.PR 47 Multiservice Edge 47 Epicus Communications 47 IP PABX 47 Ceske Radiokomunikace 47 ConEdison Development 47 AFFIN 47 CableTEL 47 iCELL 47 Premises FTTP 47 TASE MTSC announces 47 fiber coaxial cable 47 #.#-# WiMAX 47 TBOW 47 Cable Modems 47 ADSL2 + VDSL 47 Prominex 47 iTel 47 FINRA broker dealer 47 Wireless Hotspots 47 Crown Fibre 47 Mediatel 47 ZCI Offer 47 Special Purpose Vehicle SPV 47 Zynetix 47 Alleasing 47 MALAYSIA BUSINESS BRIEFS 47 Embarq EQ 47 Proposed Transactions 47 Ltd HKBN wholly 47 Stonecap Securities Inc. 47 Gilat SkyEdge 47 Powertron 47 Zhejiang Tianyuan Biotech 47 Chunghwa Telecom MOD 47 node FTTN broadband 47 Nasdaq TLSN 47 ACONYX 47 Axia NetMedia 47 CS# EDC 47 NEBS certified 47 Patimas 47 Singtel 47 Kavveri Telecom 47 Telekom Deutschland 47 Telstra Wholesale 47 CBB Mobil 47 Shiron Satellite Communications 47 Mozat 47 Nextel iDEN 47 ILEC CLEC 47 DSL modem router 47 HN# Series 47 Optus AAPT 47 PTTs 47 Dense Wave Division Multiplexing 47 MobiFon 47 PTTCH 47 AZERFON 47 Coarse Wavelength Division Multiplexing 47 Ethernets 47 lumpsum turnkey 47 HGCH 47 Yipes FinancialConnect 47 AmBank Bhd 47 Idea Cellular Aircel 47 Qatar Telecom Qtel 47 RidgeWorth Funds 47 iGate Patni 47 OFDM orthogonal frequency 47 SOFTBANK MOBILE 47 Huawei U# 47 Comptel Provisioning 47 Pacifictel 47 Rajan Raheja 47 Labuan IBFC 47 renamed Vodafone Essar 47 WOFE 47 VANs 47 IMS SIP 47 Kyivstar Ukraine 47 PanAndean 47 MultiMedia Gift Card 47 Xinyu Hengdeli Holdings 47 OnePhone 47 Gigabit PON GPON 47 Jaring 47 Number Porting 47 Tabrio TM 47 TransTeleCom 47 Via Embratel 47 IPCentrex 47 Triton PCS 47 HPH Trust 47 bookrunning managers 47 CEVA SATA 47 Adastra shareholders 47 SAT3 cable 47 WCDMA HSDPA networks 47 Douay Ouest gold 47 NPH Funds 47 Mobile Networks NGMN 47 AMFB 47 TASE ALVR 47 BrT 47 BECS 47 COMX 47 Cable Onda 47 Telemar Norte Leste 47 XCEL Telecom 47 WiFi Roaming 47 Synchronous Optical Network