The best price for Cisco SPA 500 SPA504G is $141.74. This is presently the cheapest offer found from comparing prices from 4 shops in New Zealand and one overseas retailer. This model is among the most popular products in the VOIP Phones category and has an average rating of 3.9 out of 5 from 12 reviews.
SIP, SIP v2, SPCP
Comfort noise generation (CNG), voice activity detection (VAD), HD Voice