DTMF Decode Option Board - Field Install Only. (HT750 - not for use on 4 channel models)
Compatible with:
Motorola often changes the product SKU name. This product may have also been known as AAHLN9729a, AAHLN9729b, AAHLN9729c, AAHLN9729d, AAHLN9729e, AAHLN9729f, AAHLN9729ar.