I have a couple of questions
If you have a remote site using SRST with G711 as the local codec connected to the main Cluster across the WAN
Set up - Only call control, at the moment , is sent across the WAN back to the main Cluster,all PSTN is out local , RTP is only lcoal between the office IPT phones, SRST router has it`s own E1 connection, all handsets use G711, Voice Mail is via a dedicated TDM system. Question -Do you require any additional DSP`s on the actual SRST router for conferencing for example, can the handsets handle it themselves or can they use the conference capability at the main cluster across the WAN- both HW/ and S/W
If you can use the Cluster conference capability - Where do the RTP streams get mixed in the Cluster across teh WAN? Does the mixed RTP stream get sent across the WAN back from the Cluster?
Same set up above but now you can have calls cross the WAN