Пытаюсь настроить девайс для того, чтобы можно было звонить телефона, подключенного к железке, в сеть на linphone.

вот настройки sip:

enable_server_fqdn = 1
server_ip = 0.0.0.0
server_fqdn = sip_sen
server_port = 5060
service_domain = dgsenator
url_protocol = 1
user_phone_type = 1
timer_t2 = 4
p_n_ua = 1
enable_proceeding_timer = 1
non_register_mode = 0
initial_unregister_mode = 1
peertopeer_mode = 1
allow_PSTNcallwaiting = 1
100rel = 1
same_phone_number = 0
Min-SE = 180
Supported codecs: 0 4 8 18
digit_timer = 4
inComingCallFunctionType = 0
Line 1 configuration
phone_number = 900
display_name = ph900
user_agent_port = 5060
auth_username =
auth_password =
sig_tos = 5
rtp_tos = 5
ec = 1
vad = 0
Line 2 configuration
phone_number = 901
display_name = ph901
user_agent_port = 5061
auth_username =
auth_password =
sig_tos = 5
rtp_tos = 5
ec = 1
vad = 0
=== phone_table ===
1: [1002] = 1002@10.10.3.1:5060
2: [555] = dk@10.10.3.1:5060
3: [] = @0.0.0.0:0
4: [] = @0.0.0.0:0
5: [] = @0.0.0.0:0
6: [] = @0.0.0.0:0
7: [] = @0.0.0.0:0
8: [] = @0.0.0.0:0
9: [] = @0.0.0.0:0
10: [] = @0.0.0.0:0

при попытке позвонить с телефона на linphone дебаг выдает:

000555911 New SIP session created(sd=0).
000555911 SIP: [Line 2] call state changed StatePending ---> StateOriginated
000555911 From username missed.
000555911 Invalid SIP Message, sending aborted(sd=0)

вопрос: где прописывается 'From' username?

когда звоню с linphone на железку, постоянно выдется мне User Temporary Unavailable:

000615688 Line 1 --- Receive SIP Message from 10.10.3.1:5060 (size=689)
000615688 INVITE sip:900@10.10.3.2 SIP/2.0
Via: SIP/2.0/UDP 10.10.3.1:5060;branch=z9hG4bK4289593772
From: <s
000615688 DNS: Resolving <10.10.3.1>...
000615688 DNS: Resolving <10.10.3.2>...
000615688 New SIP session created(sd=0).
000615688 3:reply 480, ept_reg_state:0, peertopeer:0
000615688 Start close wait timer for session 0.
000615689 DNS: Resolving <10.10.3.1>...
000615689 Line 1 --- Send SIP Message to 10.10.3.1:5060 (sd=0, size=228)
000615689 SIP/2.0 480 Temporarily not available
Via: SIP/2.0/UDP 10.10.3.1:5060;branch=z9hG4bK4289593772
Fro
000615692 Line 1 --- Receive SIP Message from 10.10.3.1:5060 (size=221)
000615692 ACK sip:900@10.10.3.2 SIP/2.0
Via: SIP/2.0/UDP 10.10.3.1:5060;branch=z9hG4bK4289593772
From: <sip:
000615692 === Close session 0
000615692 Session 0 closed.

тоже самое и по номеру 901

вопрос: почему недоступен?

когда звоню с 900 на 901, после набора номера выдает:

000673790 SIP receive event: ept_id = 1, event = 36
000673790 task_sipmain: ept_id = 1, event = 36
000673790 task_sipmain: line 2 --- DTMF timeout.
000673790 SIP: Line 2 not registered.
000673790 task_sipmain: Error, cannot make call.
000673790 EPTAPI: Line 2 ept_play_tone: BUSY
000673790 t1 tone25 param=
000673790 CCU: 1, Generate supervisory tone ID=20. toNet=0, toTele= 1
000673790 CCU: 1, ToneElem(0,1)=on/off finite. Repeat 30
000673790 CCU: 1, Send Tone on message to DIM (Num freq: 2)
000673790 CCU: 1, clipping tone:20 element:0 duration:30000
000673790 SIP: [Line 2] call state changed StatePending ---> StateFailed

вопрос: где грабли?