1 WLC 4404 (SWv. 220.127.116.11) -> connected with LAG to a 3750 Switch
1 WLC 4402 (SWv. 18.104.22.168) -> connected with LAG to a 3750 Switch
125 AP 1240AG
1 Voice WLAN (qos platinum)
1 Data WLAN
7920 Phones Firmware 7920.4.0-03-02
- one mobility group (both in the same group).
- no agressive load balancing
- no peer to peer blocking
- LAG Mode enabled
- LWAPP Layer 3
- the wlc management interfaces are all on the same vlan
my problem is that sometimes when the first 7920 is connected to an AP which is registered at WLC1 and the second 7920 to an AP which is registered at WLC2 i can ring to the other phone, but there is no voice in both direction.
when both phones are connected to APs from the same WLC there aren't any problems.
do i have to configure the mobile-anchor?