что за ошибка chan_sip.c: func_header_read и как победить?

При звонке на внутренний номер астериска с др. АТС в консоли проскакивают warning'и

    -- Executing [s@macro-exten-vm:3] Set("DAHDI/i1/89678500000-11", "__EXTTOCALL=7000") in new stack
    -- Executing [s@macro-exten-vm:4] Set("DAHDI/i1/89678500000-11", "__PICKUPMARK=7000") in new stack
    -- Executing [s@macro-exten-vm:5] Set("DAHDI/i1/89678500000-11", "RT=") in new stack
[2014-04-19 17:05:06] WARNING[2979][C-00000014]: chan_sip.c:21886 func_header_read: This function can only be used on SIP channels.
    -- Executing [s@macro-exten-vm:6] ExecIf("DAHDI/i1/89678500000-11", "0?Macro(vm,novm,DIRECTDIAL,)") in new stack
[2014-04-19 17:05:06] WARNING[2979][C-00000014]: chan_sip.c:21886 func_header_read: This function can only be used on SIP channels.
[2014-04-19 17:05:06] WARNING[2979][C-00000014]: chan_sip.c:21886 func_header_read: This function can only be used on SIP channels.
    -- Executing [s@macro-exten-vm:7] ExecIf("DAHDI/i1/89678500000-11", "0?MacroExit()") in new stack
[2014-04-19 17:05:06] WARNING[2979][C-00000014]: chan_sip.c:21886 func_header_read: This function can only be used on SIP channels.
    -- Executing [s@macro-exten-vm:8] Gosub("DAHDI/i1/89678500000-11", "sub-record-check,s,1(exten,7000,)") in new stack
    -- Executing [s@sub-record-check:1] Set("DAHDI/i1/89678500000-11", "REC_POLICY_MODE_SAVE=") in new stack
    -- Executing [s@sub-record-check:2] GotoIf("DAHDI/i1/89678500000-11", "1?check") in new stack

проблем вроде никаких не наблюдает но настораживает. При звонке с внутреннего на внутренний:

 -- Executing [agent_config@sub-ccss:3] Set("SIP/7114-0000001e", "CALLCOMPLETION(ccbs_available_timer)=") in new stack
    -- Executing [agent_config@sub-ccss:4] Set("SIP/7114-0000001e", "CALLCOMPLETION(ccnr_available_timer)=") in new stack
    -- Executing [agent_config@sub-ccss:5] Set("SIP/7114-0000001e", "CALLCOMPLETION(cc_callback_macro)=ccss-default") in new stack
[2014-04-19 17:22:13] WARNING[3439][C-0000001a]: ccss.c:1000 ast_set_cc_callback_macro: Usage of cc_callback_macro is deprecated.  Please use cc_callback_sub instead.
    -- Executing [agent_config@sub-ccss:6] ExecIf("SIP/7114-0000001e", "1?Set(CALLCOMPLETION(cc_recall_timer)=)") in new stack
    -- Executing [agent_config@sub-ccss:7] ExecIf("SIP/7114-0000001e", "1?Set(CALLCOMPLETION(cc_max_agents)=)") in new stack
    -- Executing [agent_config@sub-ccss:8] ExecIf("SIP/7114-0000001e", "0?Set(CALLCOMPLETION(cc_agent_dialstring)=Local/7114_7000@from-ccss-)") in new stack
    -- Executing [agent_config@sub-ccss:9] Set("SIP/7114-0000001e", "CALLCOMPLETION(cc_callback_macro)=ccss-default") in new stack
[2014-04-19 17:22:13] WARNING[3439][C-0000001a]: ccss.c:1000 ast_set_cc_callback_macro: Usage of cc_callback_macro is deprecated.  Please use cc_callback_sub instead.
    -- Executing [agent_config@sub-ccss:10] Return("SIP/7114-0000001e", "") in new stack

(Asterisk 11.5.1+ FreePBX 2.11.0.11)