Overview

PRI is an abbreviation for Primary Rate Interface and is a telecommunication standard for carrying multiple data or voice DS0 transmissions between 2 physical locations. PRI is the standard for providing telecommunication services to enterprises and offices. It is based on T-carrier (T1) transmission in the US, Canada, and Japan, while the E-carrier (E1) is common in Europe and Australia. The Primary Rate Interface channels are typically used by medium to large enterprises with digital private branch exchange (PBX) telephone systems to provide digital access to the public switched telephone network (PSTN). The B-channels may be used flexibly and reassigned when necessary to meet special needs such as video conferences. To go into the telephony field these channels and their functioning are totally functionable on the asterisk platform which is responsible for making the telephony environment go live.Asterisk turns an ordinary computer into a communications server. Asterisk powers IP PBX systems, VoIP gateways, conference servers and other custom solutions. It is used by small businesses, large businesses, call Centres, carriers and government agencies, worldwide

ARIA digital cards are designed to work with Open Source based VoIP platforms such as Asterisk® (e.g. PBX in a Flash®, FreePBX® Elastix®) &Free SWITCH®.

ARIA’s Line Cards are manufactured in state of the art ISO 9001:2001 certified facilities in India.

ASTERISK PRI CARD

UNIQUE FEATURES

  • 2U rack / server mountable
  • Tapping capable
  • Ease of installation (no patches required for installation)

OPERATING SYSTEMS

  • Linux Kernel: 2.4 to Latest

VOICE PLATFORMS

  • Asterisk : 1.4 to Latest
  • FreeSWITCH :> 1.2.7
  • Yate: Under Dev.

LINE CODING

  • HDB3, AMI, B8ZS
  • Legacy PBX/IVR Services
  • VoIP Services
  • Complex IVR Applications
  • Conference Bridges
  • VoIP Gateways
  • Calling Card Platforms
  • PRI Switch Compatibility : Network or CPE
  • Voice Tapping

Single PORT Asterisk PRI Card

ARIA’s CF-01 series PCIe cards are high-performance, cost effective telephony cards available with carrier grade optional hardware echo cancellation. The CF-01cards allows up to 24 (T1) or 30 (E1) channels.

Asterisk Dual PORT PRI Card

ARIA CF-02 series PCIe cards are high-performance, cost effective telephony cards available with carrier grade optional hardware echo cancellation. The CF-02 cards allows up to 48 (T1) or 60 (E1) channels.

Asterisk Four PORT PRI Card

ARIA CF-04 series PCIe cards are high-performance, cost effective telephony cards available with carrier grade optional hardware echo cancellation. The CF-04 cards allow up to 96 (T1) or 120 (E1) channels.

It may due to the method by which the telco sends calls to your line. Try these troubleshooting.

  • In your line context, use: _x. , 1, NoOp (My DID matches as ${EXTEN})
  • Type “reload” in the console and call in.
  • DID should come into your T1/E1 line.
  • Green: card is in-sync with the end
  • Red: The card cannot see the far end or its not working
  • Yellow: The card is getting red alarm from the far end
Check the “PRIDIALPAN” option to ensure that the card is dialing in the same method as your telco works with.
  • Check your card parameters first.
  • Check if your X windows is running properly by entering #ps aux | grep X
  • Check if the PATA IDE hard drives are running with set DMA levels.
It may be due to mismatch of E&M type with your telco system. Try using other types of E&M and see if the problem is resolved.
Type in “CLI> PRI debug span X” command and in the place of “X” enter the form of port you are using.
  • In the Asterisk, type in the following commands:
  • * CLI> core show applications
  • * CLI> core show functions
  • This will enable all the features of your card.

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