Hier mal die Debug Infos vom letzten Versuch.
Änderung der Router Einstellungen hat leider nichts gebracht.
Edited: ...erfolgreiche Registrierung...
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18:08:10,884: Connect Request: 3B 00 01 00 02 80 04 00 01 00 00 00 01 00 0E 80 30 30 34 39 39 31 31 33 35 39 37 34 38 0B 00 80 53 5F 42 41 52 54 48 45 4C 00 00 09 01 00 01 00 00 00 00 00 00 00 00 02 91 81 00
18:08:10,894: Connect Request: aaa to bbb
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18:08:11,364: T: 213.61.187.150:3478
STUN
public ip: 195.4.216.212:5062
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18:08:11,434: Connect Confirm: 0E 00 01 00 02 81 04 00 01 01 00 00 00 00
18:08:11,434: Connect Confirm
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18:08:11,444: T: 194.120.0.203:5060
INVITE sip:0049911359748@sipdiscount.com SIP/2.0
Via: SIP/2.0/UDP 195.4.216.212:5061;branch=z9hG4bK8027ceb8e2bcda11b28f0020ed0c774f
From: Sebastian <sip:aaa@sipdiscount.com>;tag=10799
To: <sip:bbb@sipdiscount.com>
Call-ID: 8027CEB8-E2BC-DA11-B28E-0020ED0C774F@195.4.216.212
CSeq: 3 INVITE
Contact: <sip:aaa@195.4.216.212:5061>
Max-Forwards: 70
User-Agent: SIPPER for PhonerLite
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY
Content-Type: application/sdp
Content-Length: 344
v=0
o=root 2367994 2367994 IN IP4 195.4.216.212
s=call
c=IN IP4 195.4.216.212
t=0 0
m=audio 5062 RTP/AVP 8 0 2 3 97 110 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:2 G726-32/8000
a=rtpmap:3 GSM/8000
a=rtpmap:97 iLBC/8000
a=rtpmap:110 speex/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
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18:08:11,565: R: 194.120.0.203:5060
SIP/2.0 183 Session progress
Via: SIP/2.0/UDP 195.4.216.212:5061;branch=z9hG4bK8027ceb8e2bcda11b28f0020ed0c774f
From: Sebastian <sip:aaa@sipdiscount.com>;tag=10799
To: <sip:bbb@sipdiscount.com>;tag=cb0078c24427d700788f
Contact: sip:bbb@194.120.0.203:5060
Call-ID: 8027CEB8-E2BC-DA11-B28E-0020ED0C774F@195.4.216.212
CSeq: 3 INVITE
User-Agent: (Very nice Sip Registrar Server)
Allow: ACK,BYE,CANCEL,INVITE,REGISTER,OPTIONS
Content-Type: application/sdp
Content-Length: 155
v=0
o=aaa 123456 123456 IN IP4 194.120.0.161
s=SIP Call
c=IN IP4 194.120.0.161
t=0 0
m=audio 24738 RTP/AVP 8
a=rtpmap:8 pcma/8000
a=ptime:20
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18:08:11,575: Info Indication: 11 00 01 00 08 82 0E 00 01 01 00 00 1E 00 02 81 88
18:08:11,585: Info Indication: in-band information or an appropriate pattern is now available
18:08:11,585: Connect B3 Request: 0D 00 01 00 82 80 05 00 01 01 00 00 00
18:08:11,585: Connect B3 Request
18:08:11,585: Info Response: 0C 00 01 00 08 83 0E 00 01 01 00 00
18:08:11,585: Info Response
18:08:12,075: Connect B3 Confirm: 0E 00 01 00 82 81 05 00 01 01 01 00 00 00
18:08:12,075: Connect B3 Confirm
18:08:12,075: Connect B3 Active Indication: 0D 00 01 00 83 82 0F 00 01 01 01 00 00
18:08:12,085: Connect B3 Active Indication
18:08:12,135: Connect B3 Active Response: 0C 00 01 00 83 83 0F 00 01 01 01 00
18:08:12,145: Connect B3 Active Response
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18:08:21,529: R: 194.120.0.203:5060
SIP/2.0 200 Ok
Via: SIP/2.0/UDP 195.4.216.212:5061;branch=z9hG4bK8027ceb8e2bcda11b28f0020ed0c774f
From: Sebastian <sip:aaa@sipdiscount.com>;tag=10799
To: <sip:bbb@sipdiscount.com>;tag=cb0078c24427d700788f
Contact: sip:bbb@194.120.0.203:5060
Call-ID: 8027CEB8-E2BC-DA11-B28E-0020ED0C774F@195.4.216.212
CSeq: 3 INVITE
User-Agent: (Very nice Sip Registrar Server)
Allow: ACK,BYE,CANCEL,INVITE,REGISTER,OPTIONS
Content-Type: application/sdp
Content-Length: 155
v=0
o=aaa 123456 123456 IN IP4 194.120.0.161
s=SIP Call
c=IN IP4 194.120.0.161
t=0 0
m=audio 24738 RTP/AVP 8
a=rtpmap:8 pcma/8000
a=ptime:20
-------------------------------------------
18:08:21,539: Connect Active Indication: 0F 00 01 00 03 82 56 01 01 01 00 00 00 00 00
18:08:21,539: Connect Active Indication:
18:08:21,549: Connect Active Response: 0C 00 01 00 03 83 56 01 01 01 00 00
18:08:21,549: Connect Active Response
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18:08:21,569: T: 194.120.0.203:5060
ACK sip:0049911359748@194.120.0.203:5060 SIP/2.0
Via: SIP/2.0/UDP 195.4.216.212:5061;branch=z9hG4bK8008c4bee2bcda11b28f0020ed0c774f
From: Sebastian <sip:aaa@sipdiscount.com>;tag=10799
To: <sip:bbb@sipdiscount.com>;tag=cb0078c24427d700788f
Call-ID: 8027CEB8-E2BC-DA11-B28E-0020ED0C774F@195.4.216.212
CSeq: 3 ACK
Contact: <sip:aaa@195.4.216.212:5061>
Max-Forwards: 70
Content-Length: 0
-------------------------------------------
18:08:34,367: R: 194.120.0.203:5060
BYE sip:aaa@sipdiscount.com:5060 SIP/2.0
Via: SIP/2.0/UDP 194.120.0.203:5060;branch=z9hG4bK8027ceb8e2bcda11b28f0020ed0c774f
From: <sip:bbb@sipdiscount.com>;tag=cb0078c24427d700788f
To: Sebastian <sip:aaa@sipdiscount.com>;tag=10799
Contact: sip:bbb@194.120.0.203:5060
Call-ID: 8027CEB8-E2BC-DA11-B28E-0020ED0C774F@195.4.216.212
CSeq: 1 BYE
User-Agent: (Very nice Sip Registrar Server)
Allow: ACK,BYE,CANCEL,INVITE,REGISTER,OPTIONS
-------------------------------------------
18:08:34,387: Disconnect B3 Indication: 0E 00 01 00 84 82 11 03 01 01 01 00 00 00
18:08:34,387: Disconnect B3 Indication
18:08:34,387: Disconnect B3 Response: 0C 00 01 00 84 83 11 03 01 01 01 00
18:08:34,397: Disconnect B3 Response
18:08:34,407: Disconnect Indication: 0E 00 01 00 04 82 12 03 01 01 00 00 00
leider kann ich in dem Log keine Ursache erkennen. Vielleicht können Heiko oder Kai mehr dazu sagen. Besonders da die Tonübertragung gegen Ende kurzzeitig funktioniert, vermute ich, dass es hier eine Inkompatibilität seitens Strato/sipdiscount gibt. Bitte teste es einmal mit anderen Anbietern (z.B. mit Sipgate: Konto ohne Grund- oder Einrichtungsgebühr, eingehende Telefonate über Festnetznummer möglich) und schaue, ob das Problem dann auch auftritt.