Two new params added to autoload_configs/rayo.conf.xml
offer-algorithm
all: offer to all clients (default and old behavior)
first: offer to first client, fails over to next client in list
random: offer to random client, fails over to next random client
offer-timeout-ms
0: disable
> 0 and < 120000: time to wait for reply from offer. On timeout, next client is offered call.
If no other clients available, call is rejected. 5000 is default.
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