Hi Dave,
Happy new year, long time no see, as my hkbn was working for outgoing calls :P, however, it was not working again, I got busy signal when I have any outgoing call right after I punched in the phone number, do you have any suggestion? my firmware for my ata was sipura-2000 3.1.5, here is my log for the busy signal for every outgoing calls:
PLEASE HELP

;)
RSE_DEBUG: reference domain:s21.hkbntel.net
[0:5060]->203.80.89.135:5060
[0:5060]->203.80.89.135:5060
INVITE sip:92448888@s2hkbntel.net SIP/2.0
Via: SIP/2.0/UDP 192.168.2.8:5060;branch=z9hG4bK-f516699c
From: ;tag=f8fdd4d54e47c034o0
To:
Call-ID: af3b5629-f10e0ef0@192.168.2.8
CSeq: 101 INVITE
Max-Forwards: 70
Contact:
Expires: 240
User-Agent: Sipura/SPA2000-3.1.5
Content-Length: 229
Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER
Supported: x-sipura
Content-Type: application/sdp
v=0
o=- 58502 58502 IN IP4 192.168.2.8
s=-
c=IN IP4 192.168.2.8
t=0 0
m=audio 19388 RTP/AVP 8 100 101
a=rtpmap:8 PCMA/8000
a=rtpmap:100 NSE/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
[0:5060]
f: ;tag=f8fdd4d54e47c034o0
i: af3b5629-f10e0ef0@192.168.2.8
CSeq: 101 INVITE
v: SIP/2.0/UDP 192.168.2.8:5060;received=61.18.11.60;branch=z9hG4bK-f516699c
Server: MCS5x00_3.0
k: com.nortelnetworks.firewall,p-3rdpartycontrol,nosec
l: 0
[0:5060];tag=324660314
f: ;tag=f8fdd4d54e47c034o0
i: af3b5629-f10e0ef0@192.168.2.8
CSeq: 101 INVITE
v: SIP/2.0/UDP 192.168.2.8:5060;received=61.18.11.60;branch=z9hG4bK-f516699c
k: com.nortelnetworks.firewall,p-3rdpartycontrol,nosec
l: 0
[0:5060]->203.80.89.135:5060
[0:5060]->203.80.89.135:5060
ACK sip:92448888@s2hkbntel.net SIP/2.0
Via: SIP/2.0/UDP 192.168.2.8:5060;branch=z9hG4bK-f516699c
From: ;tag=f8fdd4d54e47c034o0
To: ;tag=324660314
Call-ID: af3b5629-f10e0ef0@192.168.2.8
CSeq: 101 ACK
Max-Forwards: 70
Contact:
User-Agent: Sipura/SPA2000-3.1.5
Content-Length: 0
[0:0]AUD Rel Call
CC:Failed
[0]On Hook
RSE_DEBUG: unref domain, s21.hkbntel.net
Sess Terminated
RSE_DEBUG: unref domain, s21.hkbntel.net
RSE_DEBUG: last unref for domain s21.hkbntel.net
Sess Terminated
CC:Clean Up
--- OBJ POOL STAT ---
OP:RTPRXB = 96 ( 96 192) OP:RTPREB = 40 ( 40 48)
OP:RTPTXB = 64 ( 64 108) OP:TIMEOU = 111 (120 40)
OP:SIPCOR = 0 ( 1 28) OP:SIPCTS = 32 ( 32 564)
OP:SIPSTS = 32 ( 32 3452) OP:SIPAUS = 6 ( 8 588)
OP:SIPDLG = 10 ( 10 140) OP:SIPSES = 12 ( 12 8184)
OP:SIPREG = 3 ( 4 244) OP:SIPLIN = 0 ( 2 128)
OP:STUNTS = 16 ( 16 68)
RSE_DEBUG: reference domain:s21.hkbntel.net
[0:5060]->203.80.89.135:5060
[0:5060]->203.80.89.135:5060
REGISTER sip:s2hkbntel.net SIP/2.0
Via: SIP/2.0/UDP 192.168.2.8:5060;branch=z9hG4bK-4f4b7b74
From: ;tag=65b11c9361af07d7o0
To:
Call-ID: 14269483-323e70a7@192.168.2.8
CSeq: 9 REGISTER
Max-Forwards: 70
Proxy-Authorization: Digest username="35961323",realm="Realm",nonce="MTEzNjA4OTE
xODMwOTE2ZTRiOTk2ZTY4MzBhODJjMDY3NmNmOTA3Njg5MGZk",uri="sip:s2hkbntel.net",algor
ithm=MD5,response="a7d5a2d8c5757bafe692ec7b44cd5aa1",qop=auth,nc=00000004,cnonce
="a1dbedcc"
Contact: ;expires=120
User-Agent: Sipura/SPA2000-3.1.5
Content-Length: 0
Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER