Related by context. All words. (Click for frequent words.) 70 G.SHDSL 69 SDH SONET 69 ADSL VDSL 69 Synchronous Digital Hierarchy 69 Calix C7 68 SDSL 68 ONUs 67 ADSL/ADSL2 + 67 MileGate 67 VDSL2 67 linecards 67 Ethernet aggregation 67 IPmux 67 SFP transceivers 66 AvaLAN 66 Bonded ADSL2 + 66 ECI Hi FOCuS 66 OC-#/STM-# [003] 66 Resilient Packet Ring RPR 66 #Mbits/sec [001] 66 ADVA FSP 66 ADSL ADSL2 + 66 Access Devices EADs 66 symmetric DSL 65 OC-#/STM-# [001] 65 MetaLIGHT 65 coarse wavelength division multiplexing 65 Ethernet interfaces 65 AirPrime MC# 65 SFP modules 65 GEPON 65 ISDN DSL 65 Comtrend NexusLink 65 wavelength division multiplexing 65 Subscriber Line 65 #Gbit s Ethernet [002] 65 CWDM DWDM 64 VoIP Gateways 64 Hi FOCuS 64 Gigabit Ethernet uplinks 64 CWDM 64 Nortel ERS 64 NetIron XMR 64 AFBR 64 WNR# 64 SOHO routers 64 IADs 64 IP SAS SATA 64 Edge Routers 64 Wireless Modem Router 64 GPON ONT 64 IP DSLAMs 64 ATM Frame Relay 64 ADSL 64 NetIron MLX Series 64 Broadband Router 64 pseudowire 64 #.#n Router 64 Muxponder 64 ADSL SDSL 64 DSL T1 64 PONs 64 MEF certified 64 uplink ports 64 ROADM Reconfigurable Optical 64 Tsunami MP.# 64 CESoP 64 Core Routers 64 VDSL 64 #G optical [001] 64 bonded ADSL2 + 64 ISDN BRI 64 #/#/# Ethernet 64 GPON OLT 64 SoftSwitch 64 ADSL2 + VDSL2 64 Wave Division Multiplexing 63 GPON optical 63 Multiservice Access 63 GE PON 63 Passive Optical Networks 63 pluggable optics 63 IEEE#.#b 63 1Gb s 63 Hitachi AMN# 63 EuroDOCSIS 63 ARRIS Touchstone 63 VPN router 63 Motorola SURFboard 63 HN# Series 63 VoDSL 63 LambdaDriver 63 Wireless Broadband Router 63 AirPair 63 Calix C7 Multiservice Access 63 Gbps optical 63 Coarse Wavelength Division Multiplexing 63 FTTx networks 63 inverse multiplexing 63 Generic Framing Procedure GFP 63 QoStream 63 OC-#/STM-# [004] 63 1G Ethernet 63 Etherjack 63 #gbps 63 Adaptive Optical Engine 63 8Mbit s 63 MPLS VPN 63 SS7 signaling 63 bonded T1 63 3Com Router 63 Zhone MALC 63 Ethernet SONET 63 1Gbit s 63 SFP transceiver 63 VoATM 63 Cat6 63 #Base X 63 BigIron RX 63 #Mbps #Mbps [001] 63 Gigabit PON GPON 63 #G Optical [001] 63 3Com Switch 63 LoopStar 63 #Mbps #.#g 62 PWE3 62 Broadband Routers 62 Femtocell Gateway 62 AN #i 62 XFP modules 62 Nortel Networks OPTera Metro 62 optical DWDM 62 #Base T [001] 62 Siemens SURPASS 62 xDSL 62 T#/E#/J# 62 Gigabit Ethernet Fibre Channel 62 port #/#/# 62 #.#ah 62 CWDM wavelengths 62 EoS 62 G PON 62 Optical Ethernet 62 Access Concentrator 62 Wideband 62 #-Gbit/sec 62 ADSL2 + 62 HDSL 62 Hosted IP PBX 62 Cable Modems 62 VDSLPlus 62 fractional T1 62 Multi Gigabit 62 DWDM dense wavelength 62 hiT 62 XENPAK 62 MAGNM 62 drop multiplexer ROADM 62 T#/E# circuits 62 symmetrical bandwidth 62 GSM# [001] 62 Passive Optical Networking 62 Circuit Emulation 62 Redline RedCONNEX 62 mux demux 62 EZ Connect 62 GPON 62 trunking gateway 62 #Mpbs 62 BroadLight BL# 62 DS1 62 WAN interfaces 62 #G Ethernet ports 62 W-CDMA/HSPA 62 T1 DS3 62 #Mbps #Mbps [003] 62 modulation formats 62 iSPAN 62 NetIron XMR Series 62 T1s 62 #Base FX 62 XFPs 62 ConnectPort WAN VPN 62 Wavelength Division Multiplexing WDM 62 CPE modems 62 VDSL chipsets 62 SONET OC 62 SONET SDH PDH 62 ZyAIR B 62 WAN Router 62 CDMA 1xRTT 62 #Base T [003] 62 #Mbps upstream 62 DSL cable modem 62 Draft #n 62 IEEE #.#ah 62 OFDM modulation 62 Motorola Canopy 61 IPv4 IPv6 61 Dual Carrier 61 FTTH deployments 61 EPON GPON 61 UMTS GPRS 61 Ethernet Demarcation 61 SDH Synchronous Digital Hierarchy 61 Ethernet Fibre Channel 61 Customer Premise Equipment CPE 61 Carrier Ethernet switches 61 MPLS Multi 61 ETHERNET 61 RFPON 61 Bonded DSL 61 Ethernet MPLS 61 MSP# [002] 61 EoC 61 #GBASE SR 61 Alcatel Lucent IP MPLS 61 Packet Processor 61 PacketCable compliant 61 #G OTN [001] 61 #Gigabit 61 DOCSIS ® 61 Platform MSAP 61 IEEE #.#b 61 IP MPLS 61 Switch Routers 61 XBee PRO 61 FXO FXS 61 VDSL2 ADSL2 + 61 HFC hybrid 61 PacketWave 61 T#/E# 61 #.#Gbps [001] 61 CAT 5e 61 Metrobility 61 Pseudo Wire 61 node segmentation 61 #GBASE CX4 61 Gbps wavelengths 61 Gaming Router 61 T1 E1 61 GPRS UMTS 61 #x# MIMO 61 Mbps symmetric 61 ISDN ADSL 61 DS#/E# 61 TDM ATM 61 port #G Ethernet 61 network terminals ONTs 61 Vx# [002] 61 Gigabit PHY 61 Ethernet 61 #G/#G [001] 61 #Base SX 61 #BaseT [002] 61 #GigE [001] 61 BroadAccess 61 Synchronous Digital Hierarchy SDH 61 Mbps symmetrical 61 Hybrid Fiber Coax 61 4Gbit s 61 iMAP 61 T#/E# WAN 61 ADSL2 61 metro DWDM 61 1G EPON 61 Transceivers 61 line terminal OLT 61 loopbacks 61 BPON 61 GPON ONTs 61 Ethernet Extenders 61 Turbo EPON 61 MSAPs 61 BreezeACCESS VL 61 SDH PDH 61 ADSL2plus 61 Gigabit Ethernet Passive Optical 61 #Gbps optical [001] 61 Multiplexing 61 RangeMax 61 Dense Wavelength Division Multiplexing 61 Bonded T1 61 2Gbps 61 IWLAN 61 Gigabit Ethernet GbE 61 zNID 61 reconfigurable optical 61 EtherEdge 61 #Mb s [001] 61 singlemode 61 Ceragon FibeAir 61 Ethernet Gigabit Ethernet 61 XENPAK X2 61 EtherReach 61 #G wavelengths [001] 61 ZigBee modules 61 ASDL 61 Gbits sec 61 multipoint Ethernet 61 Multiservice Provisioning Platform MSPP 61 Leased Lines 61 Pseudowire 61 cdma# 61 iTLA 61 OC-#/STM-# [002] 60 IPoDWDM 60 WLAN router 60 Calix E7 Ethernet 60 #/#G [002] 60 OLTs 60 #.#G EPON 60 Ciena CN 60 Inmarsat SwiftBroadband 60 ADSL2Plus 60 3G/UMTS 60 Aperto PacketMAX 60 Synchronous Optical Network 60 BreezeACCESS 60 DSLAM 60 OADM 60 2Gbit s 60 GigaSPEED X#D 60 singlemode fiber 60 #.#g Wireless 60 Virtual Concatenation VCAT 60 Protocol Label Switching 60 #Mbps [002] 60 DSLAMs 60 Vmux 60 iWDM 60 IPv#/IPv# 60 GigE 60 Digi TransPort 60 DS1 DS3 60 Fibre Channel Gigabit Ethernet 60 1G #.#G 60 Mbps 60 SDIO interface 60 #Base T [002] 60 Ethernet LANs 60 DWDM optical 60 DWDM 60 4Gb Fibre Channel 60 DSL 60 mesh nodes 60 XFP transceivers 60 NETGEAR RangeMax Wireless 60 Optical Multiservice Edge 60 QSFP + 60 8Mbit 60 OM3 fiber 60 1GbE 60 3G Femtocell 60 wireless LANS 60 Cable Modem 60 sub channelization 60 SIGTRAN 60 #.#j 60 wi4 WiMAX 60 1XRTT 60 Trident7 60 #.#Gbit s [002] 60 Orthogonal Frequency Division Multiplexing 60 Cisco CRS 1 60 Access Node 60 Switching MPLS 60 UTP cables 60 Gb s optical 60 fiber coaxial 60 Mbit s Ethernet 60 LTE FDD 60 FTTH FTTP 60 NEBS certified 60 Fiber Driver 60 CWDM SFP 60 echo canceller 60 Nortel Networks Passport 60 XWAY ARX# 60 GSM UMTS CDMA 60 VocalTec Essentra 60 MPLS Multiprotocol Label Switching 60 Gigabit Ethernet GigE 60 selects Alcatel 60 #Gbps Ethernet [001] 60 E7 Ethernet 60 MBd 60 Multipoint 60 CMTSs 60 3G CDMA# 1X 60 TigerAccess 60 FTTP 60 Actelis EFM 60 Switched Ethernet 60 Ethernet Extender 60 1x RTT 60 ADSL Modem 60 ONTs 60 SFP ports 60 Dense Wave Division Multiplexing 60 #Mbps downstream [001] 60 ADSL1 60 MetaSwitch VP# 60 Firetide HotPort 60 Edge QAM 60 POTS ISDN 60 #Mbps [003] 60 ConnectPort WAN 60 mSwitch 60 MDM# 60 uncontended 60 softswitching 60 aggregation switches 60 Fujitsu FLASHWAVE 60 VoIP softswitch 60 T#/E# T#/E# 60 #.#Mbps downstream 60 VRRP 60 #/#Mbps Ethernet 60 FlexMAX 60 Lucent Stinger 60 Multimode 60 SEGway 60 TVnet 60 Multiplexers 60 stackable switches 60 MSPPs 60 IPVPN 60 1GigE 60 WCDMA HSPA + 60 Alcatel Evolium 60 coaxial cables 60 #/#M 60 VectaStar 60 ProST 60 Gbps interfaces 60 SMC Barricade 60 interwork 60 Telecommunications DECT 60 Edge OME 60 Gbps DWDM 60 Packet Optical 60 DS1s 60 EtherMap 60 Ethernet WAN 60 #.#G HSDPA 60 Gigabit Ethernet LAN 60 Customer Premises Equipment CPE 60 MPLS VPLS 60 OFDM orthogonal frequency 60 MetroScope 59 please visit www.EXFO.com 59 HN# [001] 59 Teknovus TK# 59 ADSL2 + modem 59 #/#/# Mbps 59 UMA GAN 59 Protocol Tester 59 mesh topology 59 Enhanced Uplink 59 Optical Switch 59 Motorola AXS# 59 Network GEPON 59 LC connectors 59 Intellon HomePlug ICs 59 Digi Connect 59 ADSL Asymmetric Digital 59 Alvarion WiMAX 59 Alvarion BreezeACCESS VL 59 AWL# 59 NexusLink 59 J#A 59 XFP optical 59 CAT6 59 #Gbit s [002] 59 #.#a/b/g wireless 59 Ethernet-over-SONET/SDH 59 #Mbps downstream [002] 59 E#/T# 59 WDM PON 59 DSL modem router 59 Cyan Z Series 59 Gigabit Ethernet #GE 59 FlexPath 59 ISDN PRI 59 LTE EPC 59 Network Terminals ONTs 59 Cadant C4 CMTS 59 tunable DWDM 59 VPLS 59 2Gb s 59 SAFARI C 59 Cisco ONS 59 MSANs 59 Industrial Ethernet Switches 59 Universal Edge QAM 59 AMN# [002] 59 WCDMA HSDPA 59 DS0 59 UTP cabling 59 unshielded twisted pair 59 Selects Ciena 59 HSDPA UMTS 59 XO SIP 59 #GbE interfaces 59 xPON 59 GigE interfaces 59 Common Photonic Layer CPL 59 SONET EoS 59 RAD Vmux 59 WAN PHY 59 MI #XM 59 OTDRs 59 Fiber Optic Transceiver 59 Mbps downstream 59 WaveReady 59 UltraFLEX 59 #Gigabit Ethernet 59 #kbit s [002] 59 #/#BASE-T 59 Nortel Optical Multiservice 59 mesh backhaul 59 Ripwave 59 Mbps DSL 59 #G/#.#G 59 Cisco IP NGN 59 dense wavelength division multiplexing 59 OBSAI CPRI 59 #T#R 59 FTTB deployments 59 Gigabit Ethernet Switch 59 synchronous Ethernet 59 DQPSK 59 GPON Gigabit 59 SS7 ISDN 59 TOSAs 59 multiprotocol label switching 59 Agilent MXA 59 Iuh 59 Multiprotocol 59 modular CMTS 59 #.#-# WiMAX 59 USB Dongle 59 Mbits sec 59 FLASHWAVE 59 Essentra BAX 59 AirMaestro 59 RRHs 59 Active Ethernet 59 #GBASE SR# 59 VoIP gateways 59 #Gb Fibre Channel 59 WiMAX #e 59 SPH#D 59 DWDM backbone 59 Foundry FastIron 59 WiMAX modems 59 Grandmaster Clock 59 TPSDA 59 VDSL#/ADSL# + 59 NGN IMS 59 #G #G [002] 59 SIP H# 59 AVANTA 59 SmartVoice 59 CSM# 59 DWDM wavelengths 59 #QAM 59 Gbps Ethernet 59 AT AR#S 59 Physical Layer PHY 59 BreezeMAX TM 59 Shift Keying 59 gigabit Ethernet switches 59 Nortel #G [001] 59 Sonet SDH 59 Fast Ethernet 59 C4 CMTS 59 Residential Gateways 59 triplexer 59 NexTone IntelliConnect System 59 Calix C7 platform 59 Verizon IP Trunking 59 Bluetooth EDR 59 transceiver modules 59 Ethernet connectivity 59 OC3 59 coax cables 59 Mbps HSUPA 59 STT #G 59 iNFINITI 59 Covad DSL 59 OTDR modules 59 Gbit sec 59 #/#Base-T 59 SkyExtender 59 GlobalConnect 59 #GBASE 59 MBR# 59 multimode optical fiber 59 PtMP 59 Backhaul Solution 59 #mbps [001] 59 HSPA WCDMA 59 wideband codecs 59 Gigabit Switch 59 gigabit Ethernet 59 ZebOS 59 LX4 59 Actelis Ethernet 59 #Mbit/sec [002] 59 EPON chipset 59 IPK II 59 CoreDirector 59 IP trunking 59 BroadWorks platform 59 wave division multiplexing 59 GigE ports 59 OM4 59 Cellular Backhaul 59 UpZide 59 Gigabit Ethernet WAN 59 ProSLIC 59 Ciena #G 59 Ethernet PON 59 Access Platform ESAP 59 Alcatel Lucent GPON 59 VDSL DMT 59 Synchronous Ethernet 59 Mobile WIMAX 59 Fusiv 59 T1 59 FTTP deployments 59 RocketLinx 59 Add Drop Multiplexer 59 #X# MIMO 59 MTS #A 59 Mbps Ethernet 59 OmniPCX Enterprise 59 Leased Line 59 4Mbit s 59 T#/E# interfaces 59 #x# WSS 59 #/#/# Ethernet ports 59 PCIe Gen2 59 seamless interworking 59 tunable transponders 59 STM-#/OC-# 59 EliteConnect 59 ROADM 59 #/#Base-T Ethernet 59 MBit s 59 AWB# 59 diplexer 59 XAUI interface 59 HSDPA WCDMA 59 FHSS 59 Link OAM 59 MiriATE 59 Spirent TestCenter 59 3G/HSDPA 59 ADC KRONE 59 Add Drop Multiplexers 58 Category 5e 58 SBV# 58 Quadrature Amplitude Modulation 58 PacketCable TM 58 8mbps 58 ADSL modem 58 ADVA Fiber Service 58 MetroNID 58 #.#af 58 W CDMA 3G 58 gigabit ports 58 E pHEMT 58 4mbps 58 GlobeTrotter 3G QUAD 58 Redline RedMAX 58 PL# [003] 58 Routing Switch 58 adaptive beamforming 58 EnGenius 58 #G ATCA 58 #.#b wireless LAN 58 DWDM SFP 58 fiber optic transceivers 58 PHY MAC 58 Cat5e 58 VDSL2 modem 58 Router Switch 58 DS2 #Mbps 58 PRI ISDN 58 ISAM FTTU 58 IEEE #.#ad 58 IPnexus 58 PRC# 58 HSDPA EDGE 58 MLX Series 58 KEYMILE 58 FXS ports 58 picocells 58 ITU G.# GPON 58 LMS# [001] 58 E#/T# ports 58 NetEngine 58 #Gb s [002] 58 Ethernet LAN 58 #.#-#.# GHz [004] 58 NetPerformer 58 Juniper T# 58 Redline WiMAX 58 E1 T1 58 digital headend 58 UMTS WCDMA 58 coupled diode laser 58 CDMA# 1X 58 SunSet MTT 58 backplane connector 58 FTB #B 58 Wavelength Division Multiplexing 58 TDMoIP 58 iDirect Evolution platform 58 infrared IrDA 58 #G/#G/#G 58 IP Trunking 58 POTS interfaces 58 3G UMTS networks 58 DSL ADSL 58 broadband VoBB 58 SFP + transceivers 58 MC#i 58 Redback SmartEdge 58 RF amplifier 58 Passive Optical Network 58 CDMA femtocell 58 TI TNETV# 58 OC #c 58 NEBS Level 3 58 Beamforming 58 ML# Ethernet 58 TNETV# 58 Gigabit Ethernet interfaces 58 1Mbit 58 MPLS routers 58 #.#d WiMAX 58 GPRS EDGE UMTS 58 Ethernet demarcation 58 IP VPNs 58 Cable Assemblies 58 GPON FTTH 58 T1 DSL 58 GSM GPRS EDGE UMTS 58 backhaul 58 #G WDM [002] 58 detachable antennas 58 Homeplug AV 58 AR#AP 58 PacketCable Multimedia 58 Line Terminals OLTs 58 PON OLT 58 Infinera DTN 58 Starent ST# 58 #Mbps [001] 58 Mbit s 58 Vigor# series 58 NetIron MLX 58 ADSL router 58 PTTs 58 E1s 58 Ethernet OAM 58 #/#BaseT Ethernet 58 datarates 58 Signaling Gateways 58 MetroMesh 58 #Gig [001] 58 x8 PCIe 58 Modem Router 58 Ingate Firewall 58 SoftMSC 58 GigaMux 58 Scanning Receiver 58 CPE gateways 58 8PSK 58 TRIDENT7 58 DSLAM backhaul 58 IMS architectures 58 OC# [003] 58 1Gb Ethernet 58 gigabit Ethernet #GbE 58 CMOS transceiver 58 nm VCSEL 58 IP DSLAM 58 OTU4 58 Multiservice Access Platform 58 Iub 58 WLAN #.#n 58 Mbit s upstream 58 Wintegra WinPath 58 #.#bg 58 IP MPLS backbone 58 #Mbps #Mbps [002] 58 EdgeMarc 58 MC#V 58 T1 circuits 58 Netgear RangeMax 58 RJ# connectors 58 pin SOIC package 58 8Gbit s 58 baseband chipsets 58 #Gbps serial 58 #.#n WLAN 58 1xEV DO 58 PowerBook G4 DDR2 #mb 58 CDMA 1x 58 NEBS compliant 58 E7 ESAP 58 SURFboard 58 FxDS 58 SIParator 58 Alvarion BreezeACCESS 58 wi4 Mesh 58 XR#V# [002] 58 ADSL2 + Modem 58 Nortel Common Photonic 58 WiMAX SoC 58 Multiprotocol Label Switching 58 #/#/#Mbps 58 RFS# 58 Routers Switches 58 WinPath3 58 Modems 58 Spirent Landslide 58 iAN 58 Femto Gateway 58 E MTAs 58 TestPoint 58 Wireless LAN WLAN 58 #Mbps downlink [001] 58 FTTx 58 Analog Telephone 58 iConverter 58 #Gbit s [001] 58 #.#GHz [001] 58 CPEi 58 #bit ADCs 58 1Gbit/sec 58 2G GSM 58 Octasic Vocallo MGW 58 SMA connectors 58 ActivFlex 58 Rapid Spanning Tree 58 Series Routers 58 IPv#/v# 58 RocketIO 58 X#D 58 GGL# 58 #v# [004] 58 3GPP Long Term 58 Gigabit 58 #.#Mbit 58 Gigabit uplinks 58 Gbps transponders 58 WCDMA UMTS 58 DPSK 58 PDH SDH 58 Gigabit Ethernet connectivity 58 structured cabling solutions 58 DP QPSK 58 MEF specifications 58 TK# [002] 58 #GX [001] 58 6Mbps 58 SOHO router 58 Ixia IxNetwork 58 1Gbps 58 TrueNet 58 Packet Core 58 dLAN 58 H.# SIP 58 Qwest iQ Networking 58 Airspan WiMAX 58 Differential Quadrature Phase 58 Juniper routers 58 4G Fibre Channel 58 Digital Enhanced Cordless 58 NetIron 58 multiservice switching 58 EPON 58 Packet ONP 58 VPN Router 58 division multiplexing 58 Fixed WiMAX 58 RS# RS# 58 #G transponder 58 BaseT 58 AccuROAM 58 HSDPA HSUPA 58 VoBB 58 PoE switches 58 ADSL2 + Tester 58 Fiber Channel 58 Power Amplifier 58 #Gbit/sec 58 M# connectors 58 Service Provisioning Platform 58 RS# interfaces 58 3G UMTS HSDPA 58 MXK platform 58 baud rates 58 LMDS 58 CAN transceivers 58 FlexPort 58 Netgear ProSafe 58 Adaptive Modulation 58 LatticeECP 58 SONET SDH optical 58 Juniper MX# 58 amplifier ICs 58 L#/L# 58 BroadGate 58 #GBase T PHY 58 IP MPLS Ethernet 58 PoE ports 58 #.#ad 58 #Mbits s [002] 58 SkyEdge II 58 ADVA Optical Networking FSP 58 OTDR 58 FibeAir #P 58 #Mbit s [002] 58 hybrid fiber coaxial 58 Glass RFoG 58 #G DWDM [001] 58 OS# [002] 58 #Kbit [002] 58 Hybrid Fiber Coaxial 58 Sigtran 58 #.#G [005] 58 #Mbit s [001] 58 IEEE#.# [001] 58 VoWiFi 58 RedCONNEX 58 Modulation ACM 58 Mbps #.#b 58 Transceiver 58 Hitachi EPON 58 #nm VCSEL [001] 58 VDSL2 chipset 58 Lucent 5ESS 58 MIMO antennas 58 UMTS GSM 58 EIA TIA 58 Gbit Ethernet 58 transceiver module 58 division duplex TDD 58 Alcatel OmniAccess 58 FastIron GS 58 Broadvox GO 57 OFDM Orthogonal Frequency 57 FTTC 57 Horizon Compact 57 SGMII 57 xDSL modems 57 PBB PBB TE 57 LcWDM 57 #Mbps Ethernet 57 SFP + ports 57 Echo Cancellation 57 Lucent IMS 57 JetNet #G 57 #/#/#BASE-T ports 57 #Gbit Ethernet 57 Digivance 57 3mbps 57 KVM extender 57 Multiservice 57 GSM GPRS EDGE #/#/#/# 57 GbE interfaces 57 #BASE X 57 NETGEAR ProSafe 57 #G/#G [003] 57 #.#af compliant 57 Access Gateways 57 OTU3 57 1G 2G 57 GGSN 57 Service Router SR 57 GbE switch 57 DWL #AP 57 GPON EPON 57 Thomson Cirpack 57 terminals ONTs 57 LAN SAN 57 IP Multicast 57 AN #e 57 Frame Relay 57 IP DECT 57 muxponder 57 Signaling Gateway