The Primary Rate Interface (PRI) is a standardized telecommunications service level within the Integrated Services Digital Network (ISDN) specification for carrying multiple DS0 voice and data transmissions between a network and a user.

PRI is the standard for providing telecommunication services to offices. It is based on the T-carrier(T1) line in the US and Canada, and the E-carrier(E1) line in Europe. The T1 line consists of 24 channels, while an E1 has 32.

PRI provides a varying number of channels depending on the standards in the country of implementation. In North America and Japan it consists of 23xB (B channels(be/s). In Europe and Australia it is 30xB + 1xD on an E1 2.048 Mbit/s. One timeslot on the E1 is used for synchronization purposes and is not considered to be a B or D channel.

Primary Rate Interface for large organizations with 30 bearer channels and 2xD (D channel(delta channel)) (23 64-kbit/s digital channels + 1 64-kbit/s signaling/control channel) on a T1 (1.544 Mbit (PRI)), for larger applications. Both rates include a number of B-channels and a D-channel. Each Bchannel carries data, voice, and other services. The D-channel carries control and signaling information.

The Primary Rate Interface (PRI) consists of 23 64-kbit/s B-channels and one 64-kbit/s D-channel using a T1 line, often referred to as "23B + D", (North American and Japanese standard) or 30 Bchannels and two D-channels using an E1 line (Europe/rest of world), often referred to as "30B + 2D". A T1 Primary Rate Interface user would have access to a 1.472-Mbit/s data service. An E1 Primary Rate Interface user would have access to a 1.920 Mbit/s data service Larger connections are possible using PRI pairing.

1PRI module applies to CooVox U80, U100V2, U100V1 and U50V1 IP Phone system with one port. This port has four LEDs(Light-Emitting Diodes), which is assembled on the mainboard.

Notice:

The jumper on the CooVox U80, U100V1 and U100V2 is on the “Slave” mode;

The jumper on the CooVox U50 V1 is on the “Master” mode; 1PRI Module CANNOT be inserted to SLOT 2 of U50V1.

Environmental Operation Information

Temperature: 0°C ~ 40°C

Humidity: 5% ~ 95% Non-Condensing

Physical Dimensions

88.5 x 132 mm

 Shippment Methods

Supporting DHL, Fedex, TNT, UPS, air cargo, sea shippment, railway transportation etc. 

 About Zycoo

ZYCOO is the leading developer of IP telephony devices and related systems, has devoted itself over the past years to researching and developing powerful and scalable voice over IP (VoIP) solutions that mainly serve the small and medium business/enterprise markets. 

Along with the deployment of distribution channels worldwide and branch offices in UK and UAE, Zycoo products are available through our established distribution channels (about more than 90 countries and regions); our customers will enjoy direct sales, tech-support, training, and after-sale service while using Zycoo products and solutions.

Our Commission: We focus on customers’ needs to deliver valuable and reliable products to our customers.

Our services

1. 3 years warranty for IPPBX, first year with free replacement; 2nd and 3rd year with free repairing.

2. 7x24 Support Service. Support Centre In China, UK, Dubai and Latin's.

3. Partner tranings, includes training video, online webinar, private webinar for distributor, onesite training, all supporting sales and techncial trainings. 

4. Customized OEM and ODM service from manufacture. 

5. Fulfill 90% SME IP Telephony System needs, save your 70%~80% time on configuration and maintenance.

Certificates

Get the certificates of FCC, CE, ISO9001, RCM, RHOS etc.

Wolrd Exhibitions

 Q1. How can I get a quotation?

Please contact us simply by click on the "Contact Supplier" or "Start Order" button to reach us, or email us on bottom of this page.

Q2. Can I rebrand the device?

Of course, OEM and ODM service are available. 

Q3. What is the MOQ(minimum order quantity)?

1 unit please.

Q4. Can I get a sample?

Sure, payable sample is supported.

Q5. How about the warranty and after-sale service?

3 years for IPPBX, 2 years for software, 1 year for IP Phone and iSpeaker. And our support team are online 7/24 hours.