This is on both SPA504G and SPA525G with the latest firmware release.Encryption of RTP works as intended. SDP from phone:v=0 o=- 2585 2585 IN IP4 10.61.10.160 s=- c=IN IP4 10.61.10.160 t=0 0 m=audio 16478 RTP/SAVP 9 8 0 2 18 101 a=rtpmap:9 G722/8000 ...