We exclusively offer FedEx Ground Shipping for all your purchases with Startechtel.com. We promise speedy delivery, offering FedEx shipping, and getting your orders out the door as fast as possible (usually same day). We primarily ship using FedEx Ground service, however we reserve the right to ship any other standard (or other) method. Business-day standard shipping orders placed by 2:00 pm PST usually ship the same day.
Covid-19 & Returns: Due to Covid-19, certain manufacturers we carry are no longer accepting returns on their products until further notice and they are only offering replacements if an item is not working. Please feel free to contact us via phone or email to confirm the return policy on any item you might be interested in before purchasing on our website.
Avaya Definity TN570B Expansion Interface.
- Provides an interface between the TDM bus and packet bus, and fiber optic links interconnecting cabinets
- Used in a Port Network (PN) between a PN and another PN in a direct-connect system and a PN and an SNI in a switch node carrier in a CSS-connected system
- Provides control channel applications and time-slot interchanging between the PPN and EPNs
- Used when ISDN-BRI and/or ASAI is connected in an EPN
- Used in R7si/r or later systems
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.