Compare

2x SIP accounts, 5-way conferencing, Action URL/URI, Call forward, call waiting, call transfer, Custom ring tones / provisioning, Dial plan per account, Direct IP call, One-touch speed dial, hotline, Redial, call return, auto answer, RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035), Set date time automatically or manually

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2x SIP accounts, 5-way conferencing, Call forward, call waiting, call transfer, Call log (300 entries total, in/out/missed), Call out / answer / reject, Caller ID Display, Desktop / Wall-mount installation, Economical and Environmental friendly package, Handset(HS) / Hands-free(HF) / Headphone(HP) mode (EHS support for Plantronics headsets), HD Voice, Industrial Standard Certifications: CE/FCC, Intercom, Mute / unmute (microphone), POE Enabled(X3SP/X3G), Redial, call return, auto answer

2x SIP accounts, 3 way conference, Call forward, call waiting, call transfer, Call log (300 entries total, in/out/missed), Call out / answer / reject, Caller ID Display, Desktop / Wall-mount installation, Economical and Environmental friendly package, Handset(HS) / Hands-free(HF) / Headphone(HP) mode (EHS support for Plantronics headsets), HD Voice, Industrial Standard Certifications: CE/FCC, Intercom, Mute / unmute (microphone), Redial, call return, auto answer, Support Phonebook 500 records

Android 4.2 OS, Supports 6 SIP servers and Backup SIP proxy servers., Supports Acoustic echo cancellation (AEC) – 128ms max filter length in duplex speaker phone mode, Supports HDMI, Supports high quality video call, Supports PLC & adaptive jitter buffer, Supports SIP 2.0 (RFC3261) and correlative RFCs, Supports SIP UDP/TCP/TLS, Supports USB Host

4x SIP accounts, 5-way conferencing, Action URL/URI, Call forward, call waiting, call transfer, Call hold, mute, DND, Custom ring tones / provisioning, Dial plan per account, Direct IP call, One-touch speed dial, hotline, Redial, call return, auto answer, RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035), Set date time automatically or manually, XML Browser

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1x SIP account, 5-way conferencing, Action URL/URI, Call forward, call waiting, call transfer, Custom ring tones / provisioning, Dial plan per account, Direct IP call, One-touch speed dial, hotline, Redial, call return, auto answer, RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035), Set date time automatically or manually

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Anonymous call, anonymous call rejection, Busy Lamp Field (BLF), Call park, call pickup, Intercom, paging, Message Waiting Indicator, Music on hold, Voicemail

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N/A

N/A

Auto Answer (Hands- free / Headset), Auto Redial / un-redial, Barring function for outgoing calls, Black List, BLF List, Call Completion, Call Conference, Call Forwarding, Call Holding, Call Rejection, Call Transfer (blind/attended/alert), Call Waiting, Caller ID Display, Capable of 10 way conversation, Dial without registration, Direct IP call without SIP proxy, Do Not Disturb, Flexible dial plan, Headset ring, Hot desk function, Hotline/Warm-line, Intercom/Intercom barge, Join Call, Password dial, Pickup, Soft DSS Key (Upto 100), Support messaging and MWI, Support multi line and pre-dial, Supports Call Logs with Missed / Incoming / Outgoing calls, Voice recording during talking /local

Anonymous call, anonymous call rejection, Busy Lamp Field (BLF), Call park, call pickup, Intercom, paging, Message Waiting Indicator, Music on hold, Voicemail

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Anonymous call, anonymous call rejection, Busy Lamp Field (BLF), Call park, call pickup, Intercom, paging, Message Waiting Indicator, Music on hold, Voicemail

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Acoustic Echo Cancellation (AEC), Adaptive Jitter Buffer (AJB), Auto Gain Control (AGC), Codecs (iLBC, G.722, G.711(A/μ), GSM_FR, G.723, G.729AB, G.726 -32), Comfort Noise Generation (CNG), DTMF (In-band, RFC 2833, SIP INFO), Full-duplex hands-free speakerphone with AEC (Acoustic Echo Cancellation), HD voice ( HD handset, HD speaker), Packet Loss Concealment (PLC), Voice Activity Detection (VAD)

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DTMF: In-band, Out-of-Band – DTMF-Relay (RFC2833) / SIP INFO, Dynamic Adaptive Jitter Buffer up to 300ms, Full-duplex Acoustic Echo Canceller (AEC) – Hands-free Mode, 96ms tail-length, HD Voice Microphone/Speaker (Handset/Hands-free, 0~7KHz Frequency Response), Narrowband CODEC: G.711a/u, G.723.1, G.726-32K, G.729AB, Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR), Wideband ADC/DAC 16KHz Sampling, Wideband CODEC: G.722

DTMF: In-band, Out-of-Band – DTMF-Relay (RFC2833) / SIP INFO, Dynamic Adaptive Jitter Buffer up to 300ms, Full-duplex Acoustic Echo Canceller (AEC) – Hands-free Mode, 96ms tail-length, HD Voice Microphone/Speaker (Handset/Hands-free, 0~7KHz Frequency Response), Narrowband CODEC: G.711a/u, G.723.1, G.726-32K, G.729AB, Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR), Wideband ADC/DAC 16KHz Sampling, Wideband CODEC: G.722

Adaptive Jitter Buffer (AJB), Audio format: WAV/MP3/OGG, Comfort Noise Generation(CNG), DTMF: In-band, Out-of-Band – DTMF-Relay (RFC2833) / SIP INFO, Full-duplex hands-free speaker phone with AEC (Max filter length – 128ms), Narrowband codec: G.711(A/μ), G.723.1, G.729AB, iLBC, AMR, Packet Loss Concealment (PLC), Voice Activity Detection (VAD), Wideband CODEC: G.722

Acoustic Echo Cancellation (AEC), Adaptive Jitter Buffer (AJB), Auto Gain Control (AGC), Codecs (iLBC, G.722, G.711(A/μ), GSM_FR, G.723, G.729AB, G.726 -32), Comfort Noise Generation (CNG), DTMF (In-band, RFC 2833, SIP INFO), Full-duplex hands-free speakerphone with AEC (Acoustic Echo Cancellation), HD voice ( HD handset, HD speaker), Packet Loss Concealment (PLC), Voice Activity Detection(VAD)

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Acoustic Echo Cancellation (AEC), Adaptive Jitter Buffer (AJB), Auto Gain Control (AGC), Codecs (iLBC, G.722, G.711(A/μ), GSM_FR, G.723, G.729AB, G.726 -32), Comfort Noise Generation (CNG), DTMF (In-band, RFC 2833, SIP INFO), Full-duplex hands-free speakerphone with AEC (Acoustic Echo Cancellation), HD voice ( HD handset, HD speaker), Packet Loss Concealment (PLC), Voice Activity Detection (VAD)

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132 x 48 pixel graphical LCD with backlight, Caller ID with name, number, Illuminated LEDs for line status information, Intuitive user interface with icons and soft keys, LED for call and message waiting indication, National language selection

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Dual-Functional Back Rack x1: Desktop Stand / Wall-mount, HD Hands-free Microphone (0 ~ 7KHz) x1, HD Hands-free Speaker (0 ~ 7KHz) x1, HD Handset (RJ9) x1, Keypad: 32 keys, including 4 Soft-keys 12 Standard Phone Digits keys 5 Navigation keys 2 Line keys with tri-color LED 5 Function key 3 Volume Control keys, Up/Down/Mute(Microphone) 1 Hands-free, LCD x1: 2.4/2.8 inch (320×240) color-screen LCD, Standard RJ9 Handset Wire x1

Dual-Functional Back Rack x1: Desktop Stand / Wall-mount, HD Hands-free Microphone (0 ~ 7KHz) x1, HD Hands-free Speaker (0 ~ 7KHz) x1, HD Handset (RJ9) x1, Keypad: 32 keys, including 4 Soft-keys 12 Standard Phone Digits keys 5 Navigation keys 2 Line keys with tri-color LED 5 Function key 3 Volume Control keys, Up/Down/Mute(Microphone) 1 Hands-free, LCD x1: 2.4/2.8 inch (320×240) color-screen LCD, Standard RJ9 Handset Wire x1

Bandwidth selection: 64kbps~4Mbps, Camera- Adjustable Position, Frame rate selection: 10~30fps, Image codec: JPEG/PNG/BMP/GIF, LCD Size Diagonal:7 inch (800 x 480) Capacitive touch screen, SD Interface – TF Card Support Upto 32G, Supports up to 4 video display mode, Video call resolution: QCIF / CIF / VGA / 4CIF (1280x720P Optional), Video codec: H.264 / H.263, Video format: MP4/3GP/FLV

16 bit depth color, 3.5” 480 x 320 pixel color display with backlight, Caller ID with name, number and photo, Dual-color illuminated LEDs for line status information, Intuitive user interface with icons and soft keys, LED for call and message waiting indication, National language selection, Wallpaper

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128 x 40 pixel graphical LCD, Caller ID with name, number, Illuminated LEDs for line status information, Intuitive user interface with icons and soft keys, LED for call and message waiting indication, National language selection

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2 line keys with LED, 4 context-sensitive “soft” keys, 6 features keys (Headset, Speaker, Hold, Mute, Transfer, Conference), 6 navigation keys, Volume control keys

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4 context-sensitive “soft” keys, 6 features keys (Headset, Speaker, Hold, Mute, Transfer, Conference), 6 navigation keys, Volume control keys

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1x RJ9 (4P4C) handset port, Dual-port 10/100 Mbps Ethernet, Power over Ethernet (IEEE 802.3af) (PoE), class 3

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1x RJ9 (4P4C) handset port, Dual-port 10/100 Mbps Ethernet, Power over Ethernet (IEEE 802.3af) (PoE), class 3

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Auto-provision via HTTP / HTTPS, FTP / TFTP, Auto-provision with PnP, Call hold, mute, DND, Configuration , Browser / LCD-Menu / auto-provision, HD speaker, Local tracing log export, system log, Phone lock for personal privacy protection, Reset to factory, restart, reboot

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Auto-provision via HTTP / HTTPS, FTP / TFTP, Auto-provision with PnP, Configuration , Browser / LCD-Menu / auto-provision, HD speaker, Logging and log export, Phone lock

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AES encryption for conguration le, DHCP / static / PPPoE, Digest authentication using MD5/MD5-sess, DNS-NAPTR/DNS- SRV (RFC 3263), HTTP / HTTPS web server, HTTPS certicate manager, IEEE802.1X, IPV4 / IPV6, NAT Traversal STUN mode, Open VPN, QoS( 802.1p/Q tagging (VLAN) , Layer 3 ToS DSCP), SIP server / proxy redundancy, SIP v1 (RFC2543), v2 (RFC3261), SRTP, Time and date synchronization by SNTP, TLS (Transport Layer Security)

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IP Configuration: Static / DHCP / PPPoE, Network Access Control: 802.1x, Physical: 10/100Mbps(X3S/X3SP), 10/100/1000Mbps(X3G) Ethernet, dual bridged port for PC bypass, QoS, SIP2.0 over UDP/TCP/TLS RTP/RTCP/SRTP STUN DHCP PPPoE 802.1x L2TP (Basic Unencrypted) OpenVPN SNTP FTP/TFTP HTTP/HTTPS TR069, VLAN, VPN: L2TP (Basic Unencrypted) / OpenVPN

IP Configuration: Static / DHCP / PPPoE, Network Access Control: 802.1x, Physical: 10/100Mbps(X3S/X3SP), 10/100/1000Mbps(X3G) Ethernet, dual bridged port for PC bypass, QoS, SIP2.0 over UDP/TCP/TLS RTP/RTCP/SRTP STUN DHCP PPPoE 802.1x L2TP (Basic Unencrypted) OpenVPN SNTP FTP/TFTP HTTP/HTTPS TR069, VLAN, VPN: L2TP (Basic Unencrypted) / OpenVPN

DHCP/ static/ PPPoE, STUN, Supports main DNS and secondary DNS server, Supports MD5 authentication, Supports PoE (802.3af), Supports QoS: 802.1p/q, DSCP, Supports SIP SRTP,, Supports SNTP Client, Supports VLAN, Supports VPN L2TP / PPTP / IPSec, Supports Web Filter, Supports Web HTTP / HTTPS, WAN/LAN: support bridge mode

AES encryption for conguration le, DHCP / static / PPPoE, Digest authentication using MD5/MD5-sess, DNS-NAPTR/DNS- SRV (RFC 3263), HTTP / HTTPS web server, IEEE802.1X, NAT Traversal STUN mode, QoS( 802.1p/Q tagging (VLAN) , Layer 3 ToS DSCP), SIP server / proxy redundancy, SIP v1 (RFC2543), v2 (RFC3261), Time and date synchronization by SNTP, TLS (Transport Layer Security)

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DHCP / static / PPPoE, Digest authentication using MD5/MD5-sess, DNS-NAPTR/DNS- SRV (RFC 3263), HTTP / HTTPS web server, IEEE802.1X, IPV4 / IPV6, NAT Traversal (STUN mode), Open VPN, QoS ,802.1p/Q tagging (VLAN) , Layer 3 ToS DSCP, SIP server / proxy redundancy, SIP v1, v2, SRTP, Time and date synchronization by SNTP, TLS (Transport Layer Security)

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S300

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S205

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Sangoma

Sangoma

Fanvil

Fanvil

Fanvil

Sangoma

Zycoo

Zycoo

Zycoo

Zycoo

Sangoma

Zycoo

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1 Port, 2 Port, 4 Port, 8 Port, 16 Port

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No, Yes

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Yes

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Yes

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Yes

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Yes

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Asterisk, Elastix, FreeBPX, FreeSWITCH, IP BRICK, trixbox, YATE

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YES

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Euro ISDN, Network or CPE, AT&T 4ESS, CAS Voice Modes

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25 Years from Manufacturer

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Announcements, Built in Conference Bridge/Service, Calling Queues (ACD/IVR), Dictation, Directory, Fax to Email, Feature Rich User Control Panel – Visual Voicemail, Flexible Time Based Call Routing, Follow Me/ Find Me Calling, Hunt/Ring Groups, Music On Hold, Personal IVRs, Secure Communications (SRTP/TLS), Support for Video Calling, Voice Mail Blasting, Wake Up Calls

Announcements, Built in Conference Bridge/Service, Calling Queues (ACD/IVR), Dictation, Directory, Fax to Email, Feature Rich User Control Panel – Visual Voicemail, Flexible Time Based Call Routing, Follow Me/ Find Me Calling, Hunt/Ring Groups, Music On Hold, Personal IVRs, Secure Communications (SRTP/TLS), Support for Video Calling, Voice Mail Blasting, Wake Up Calls

Announcements, Built in Conference Bridge/Service, Calling Queues (ACD/IVR), Dictation, Directory, Fax to Email, Feature Rich User Control Panel – Visual Voicemail, Flexible Time Based Call Routing, Follow Me/ Find Me Calling, Hunt/Ring Groups, Music On Hold, Personal IVRs, Secure Communications (SRTP/TLS), Support for Video Calling, Voice Mail Blasting, Wake Up Calls

Announcements, Built in Conference Bridge/Service, Calling Queues (ACD/IVR), Dictation, Directory, Fax to Email, Feature Rich User Control Panel – Visual Voicemail, Flexible Time Based Call Routing, Follow Me/ Find Me Calling, Hunt/Ring Groups, Music On Hold, Personal IVRs, Secure Communications (SRTP/TLS), Support for Video Calling, Voice Mail Blasting, Wake Up Calls

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Announcements, Built in Conference Bridge/Service, Calling Queues (ACD/IVR), Dictation, Directory, Fax to Email, Feature Rich User Control Panel – Visual Voicemail, Flexible Time Based Call Routing, Follow Me/ Find Me Calling, Hunt/Ring Groups, Music On Hold, Personal IVRs, Secure Communications (SRTP/TLS), Support for Video Calling, Voice Mail Blasting, Wake Up Calls

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Call Forwarding, Call History – Call Detail Records and Call Event Logging, Call Recording, Call Screening, Call Transfer, Call Waiting, Caller Blacklisting, Caller ID, DISA, Do Not Disturb, Paging/Intercom, Speed Dials, Three Way Calling, Voice Mail – Voicemail to Email

Call Forwarding, Call History – Call Detail Records and Call Event Logging, Call Recording, Call Screening, Call Transfer, Call Waiting, Caller Blacklisting, Caller ID, DISA, Do Not Disturb, Paging/Intercom, Speed Dials, Three Way Calling, Voice Mail – Voicemail to Email

Call Forwarding, Call History – Call Detail Records and Call Event Logging, Call Recording, Call Screening, Call Transfer, Call Waiting, Caller Blacklisting, Caller ID, DISA, Do Not Disturb, Paging/Intercom, Speed Dials, Three Way Calling, Voice Mail – Voicemail to Email

Call Forwarding, Call History – Call Detail Records and Call Event Logging, Call Recording, Call Screening, Call Transfer, Call Waiting, Caller Blacklisting, Caller ID, DISA, Do Not Disturb, Paging/Intercom, Speed Dials, Three Way Calling, Voice Mail – Voicemail to Email

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Call Forwarding, Call History – Call Detail Records and Call Event Logging, Call Recording, Call Screening, Call Transfer, Call Waiting, Caller Blacklisting, Caller ID, DISA, Do Not Disturb, Paging/Intercom, Speed Dials, Three Way Calling, Voice Mail – Voicemail to Email

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Open Standards Support for Multiple Signaling Protocols: SIP, IAX2, PRI/T1/E1, POTS/Analog, ISDN, Soft Phone Support, Specialty Device Support – Door Phones, Overhead Paging, Strobe Alerts, Paging Gateways, Voice Gateways, Failover Devices, WebRTC – Browser Based Calling (thru UCP)

Open Standards Support for Multiple Signaling Protocols: SIP, IAX2, PRI/T1/E1, POTS/Analog, ISDN, Soft Phone Support, Specialty Device Support – Door Phones, Overhead Paging, Strobe Alerts, Paging Gateways, Voice Gateways, Failover Devices, WebRTC – Browser Based Calling (thru UCP)

Open Standards Support for Multiple Signaling Protocols: SIP, IAX2, PRI/T1/E1, POTS/Analog, ISDN, Soft Phone Support, Specialty Device Support – Door Phones, Overhead Paging, Strobe Alerts, Paging Gateways, Voice Gateways, Failover Devices, WebRTC – Browser Based Calling (thru UCP)

Open Standards Support for Multiple Signaling Protocols: SIP, IAX2, PRI/T1/E1, POTS/Analog, ISDN, Soft Phone Support, Specialty Device Support – Door Phones, Overhead Paging, Strobe Alerts, Paging Gateways, Voice Gateways, Failover Devices, WebRTC – Browser Based Calling (thru UCP)

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Open Standards Support for Multiple Signaling Protocols: SIP, IAX2, PRI/T1/E1, POTS/Analog, ISDN, Soft Phone Support, Specialty Device Support – Door Phones, Overhead Paging, Strobe Alerts, Paging Gateways, Voice Gateways, Failover Devices, WebRTC – Browser Based Calling (thru UCP)

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Bulk Import Utilities (Trunks, Extensions, Users, Phone Numbers), Integrated Intrusion Detection, System Dashboards

Bulk Import Utilities (Trunks, Extensions, Users, Phone Numbers), Integrated Intrusion Detection, System Dashboards

Bulk Import Utilities (Trunks, Extensions, Users, Phone Numbers), Integrated Intrusion Detection, System Dashboards

Bulk Import Utilities (Trunks, Extensions, Users, Phone Numbers), Integrated Intrusion Detection, System Dashboards

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Bulk Import Utilities (Trunks, Extensions, Users, Phone Numbers), Integrated Intrusion Detection, System Dashboards

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User Control Panel (UCP)

User Control Panel (UCP)

User Control Panel (UCP)

User Control Panel (UCP)

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User Control Panel (UCP)

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1 Port GSM Module, Without Module

2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, Without Module

2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, E1/T1 Module, Without Module

2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, E1/T1 Module, Without Module

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2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, E1/T1 Module, Without Module

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2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, Without Module

2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, E1/T1 Module, Without Module

2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, E1/T1 Module, Without Module

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2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, E1/T1 Module, Without Module