We have CCM 6.1, unity 4.2 co-located in a Head Office, plus that we have several branches with MGCP SRST gws.
people at the branches use untiy at H.O which right now I guess uses g.711 codec so each call from a user to check voicemail is 80k per call.
we are also using untiy for auto attendant purposes, so when somebody from PSTN calls to H.O # unity plays the messages.
Q1: How much bandwidth is it consumed from the MGCP GW to Unity while plays the auto attendant messages?
For the branches, T1 goes to local MGCP and then when calls come to the branch MGCP GW, it goes through the WAN to H.O for Unity AA.
Q2: How much bandwith is used from remote MGCP gws to Unity while playing AA messages?