Yealink Ip Phone Expansion Module, Part# YEA-EXP38 network security For TVI/AHD-PT9040-IR-20X/30X

For TVI/AHD-PT9040-IR-20X/30X

PushRod is used for security alarm

ProCare PL 5X8XNBD OST 5YR

Advanced QoS features for triple play

Yealink Ip Phone Expansion Module, Part# YEA-EXP38 network security For TVI/AHD-PT9040-IR-20X/30XThe advanced Yealink YEA EXP38 IP Phone Expansion Module has 38 programmable keys each with a dual color LED Creates up to 228 programmable keys when 6 EXT are daisy chained Supports the functions for IP PBX such as BLF BLA and Intercom etc Features: Yealink Ip Phone Expansion Module 38 Programmable Keys Each With A Dualcolor Led Daisychain 6 Modules For 228 Programmable Keys Dual Color (red Or Green) Leds For Line Status Information Supports Busy