Search results for '4 port pri card/fsd2121121121212.1'
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GSM Gateway - 1 Port -VoIP
$320.00*astTECS GSM Gateway -1 Port VoIP- Multiple Channels as one
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*asttecs GSM gateway is cost effective gateway. It reduces 50% of your telephone expenses. Bulk SMS can be send. The product is scalable; just add additional channels to extend the system. Offering high quality at low price, with low power consumption, digital technology, flexible IVR & voice mail system. -
Digium – 4 port PRI Echo
$2,660.00Digium 4 PORT Digital PRI Cards
Quad Span – Echo cancellation
Digium's quad span digital interface cards support 96 (T1 / J1) or 120 (E1) connections to PSTN trunks over four spans (digital circuits). Built exclusively for use with Asterisk and Asterisk-based communications systems, the quad span digital cards provide the best value in digital connectivity.
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Quad span digital cards are available in PCI and PCI-Express form factor. All quad span models be combined with Digium's VPMOCT128 echo cancellation module to provide echo cancellation across all channels. Digium cards are compatible with all versions of Asterisk using the DAHDi driver framework. -
*ast – 4 Port PRI
$960.004 Port PRI Card from *astTECS
*astTECS offers *ast 4 PRI, the four port digital PRI card at the market competitive rate. The *ast 4 PRI card is capable to support up to 30 voice calls per span, full-duplex data throughput. The card can be used to create powerful PBX system with Asterisk – the open source platform.
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To further improve the output, we need to add the 128ms Hardware based Echo Cancellation Module and reach the highest standard in voice quality on the market. -
Digium 4 Port FXS
$399.00FXS Analog Card
4 – Port Analog Telephony Card
The 4-port FXS Analog Card supports up to four (4) connections per card in the Asterisk system. The modular nature of the cards allows you to mix and match between line (FXO) and station (FXS) interfaces, giving the exact port configuration required.
Primarily, the services provided by an FXS interface to any subscriber device are: * Dial Tone * Battery Current * Ring Voltage Learn More...
FXS is the ‘Foreign eXchange Subscriber’ interface (the plug on the wall) delivers analog telephony services to your home by local phone companies through a circuit consisting of two copper wires; connected to the subscriber equipment (telephones, modems, and fax machines). -
Sangoma 4 Port FXS
$160.00Sangoma 4 Port FXS Card
Analog Voice Boards / Analog Telephony Interface boards
Sangoma 4 Port FXS is among the highest quality Analog Telephony Interface boards for connecting Asterisk ®, FreeSWITCH® and many proprietary phone systems to the PSTN. Sangoma 4 Port Analog Telephony Interface boards are also an outstanding choice for building proto-type and proof-of-concept systems. The same drivers and API’s that are used for building a system that supports two telephony calls are used for systems that can support thousands of calls. The 4 Port FXS analog voice boards deliver superior audio quality in a 2U board that expands from two to four ports using a single interface slot.
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Digium 8 Port FXS
$725.00FXS Analog Card
8 – Port Analog Telephony Card
The 8-port FXS Analog Card supports up to eight (8) connections per card in the Asterisk system. The modular nature of the cards allows you to mix and match between line (FXO) and station (FXS) interfaces, giving the exact port configuration required.
Primarily, the services provided by an FXS interface to any subscriber device are: * Dial Tone * Battery Current * Ring Voltage Learn More...
FXS is the ‘Foreign eXchange Subscriber’ interface (the plug on the wall) delivers analog telephony services to your home by local phone companies through a circuit consisting of two copper wires; connected to the subscriber equipment (telephones, modems, and fax machines). -
Sangoma 8 Port FXS
$300.00Sangoma 8 Port FXS Card
Analog Voice Boards / Analog Telephony Interface boards
Sangoma 8 Port FXS is among the highest quality Analog Telephony Interface boards for connecting Asterisk ®, FreeSWITCH® and many proprietary phone systems to the PSTN. Sangoma 8 Port Analog Telephony Interface boards are also an outstanding choice for building proto-type and proof-of-concept systems. The same drivers and API’s that are used for building a system that supports two telephony calls are used for systems that can support thousands of calls. The 8 Port FXS analog voice boards deliver superior audio quality in a 2U board that expands from two to eight ports using a single interface slot.
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Sangoma 24 Port FXS
$2,100.00Sangoma 24 Port FXS Card
Analog Voice Boards / Analog Telephony Interface boards
Sangoma 24 Port FXS is among the highest quality Analog Telephony Interface boards for connecting Asterisk ®, FreeSWITCH® and many proprietary phone systems to the PSTN. Sangoma 24 Port Analog Telephony Interface boards are also an outstanding choice for building proto-type and proof-of-concept systems. The same drivers and API’s that are used for building a system that supports two telephony calls are used for systems that can support thousands of calls.
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The 24 Port FXS analog voice boards deliver superior audio quality in a 2U board that expands from two to eight ports using a single interface slot. -
Digium 24 Port FXS
$2,000.00FXS Analog Card
24 – Port Analog Telephony Card
The 24-port FXS Analog Card supports up to 24 connections per card in the Asterisk system. The modular nature of the cards allows you to mix and match between line (FXO) and station (FXS) interfaces, giving the exact port configuration required.
Primarily, the services provided by an FXS interface to any subscriber device are: * Dial Tone * Battery Current * Ring Voltage Learn More...
FXS is the ‘Foreign eXchange Subscriber’ interface (the plug on the wall) delivers analog telephony services to your home by local phone companies through a circuit consisting of two copper wires; connected to the subscriber equipment (telephones, modems, and fax machines). -
Sangoma 4 Port FXO
$500.00Sangoma 4 Port FXO Card
Analog Voice Boards / Analog Telephony Interface boards
The Sangoma 4 port FXO analog voice board is designed specifically for smaller-budget installations. • 4 Simultaneous PSTN calls (per interface slot) • Compatible with all commercially available motherboards • Hardware echo cancellation available • Hardware fax synching support
FXO is foreign eXchange Office interface, and is the plug on the phone that receives Analog telephony services, typically from the local phone company’s central office, of the Public Switched Telephone Netwok (PSTN). In other words, an FXO interface points to the Telco office.
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Primarily, the services provided by an FXO interface to any Telco network device are to on-hook / off-hook indication (loop closure).