sip.conf:

[1000]
type=peer
host=dynamic
cc_agent_policy=native
cc_monitor_policy=always
ccbs_available_timer=4800
ccnr_available_timer=7200
cc_max_agents=5
cc_max_monitors=5
context=cctest
callcounter=yes
callerid=1000 <1000>
sendrpid=pai
rpid_immediate=yes

[2000]
type=peer
host=dynamic
cc_agent_policy=native
cc_monitor_policy=always
ccbs_available_timer=4800
ccnr_available_timer=7200
cc_max_agents=5
cc_max_monitors=5
context=cctest
callcounter=yes
callerid=2000 <2000>
sendrpid=pai
rpid_immediate=yes



extensions.conf

[cctest]
exten => 1000,1,Set(CONNECTEDLINE(all)=1000 <1000>)
exten => 1000,n,Dial(SIP/1000,,I)

exten => 2000,1,Set(CONNECTEDLINE(all)=2000 <2000>)
exten => 2000,n,Dial(SIP/2000,,I)