This card is used in conjunction with the NT7B74 T1 digital trunk card. It is required in order to time the channels on T1. You may also use the 6 port fiber combo card to get the clocking feature and expansion ports.
| Condition | Refurbished |
BusinessPhonesDirect.com is a provider of quality phone systems and business phones.
Business Phones Direct is located at 6107 Obispo Ave., Long Beach, CA 90805