Hello,
i have a big Problem with our VG202's.
We have CUCM 8.0(2) with a SIP Trunk to our Telephone Provider.
with the VG202 i tried IOS 12.4.22T5 and 15.0.1M3.
When i connect a Analog Phone to the FXS Port, everything works fine.i can phone out and in.
When i connect a Fax, i can send a fax out and the Sniffer says that it uses G.711 and T.38 is enabled for the transfer.
When i try to receive a fax it stops after a few seconds.
When i look at the trace, the cucm sends one Wrong Invite Packet:(Trace vom Voice Log Translator)
//SIP/SIPUdp/wait_SdlSPISignal: Outgoing SIP UDP message to 82.z.z.z:[5060]:
INVITE sip:0049xxxxxxxx@82.z.z.z:5060 SIP/2.0
Via: SIP/2.0/UDP 10.x.x.x:5060;branch=z9hG4bK763748f093
From: <sip:0049xxxxxxxxxx@10.x.x.xx0:5060>;tag=ff7b2b03-9c7c-46e3-b0b7-24f31958f09a-20768851
To: <sip:0049xxxxxxxxxx@82.z.z.z:5060;cpc=ordinary>;tag=gK080b28cb
Date: Mon, 20 Sep 2010 14:48:20 GMT
Call-ID: 1057542822_10220@82.z.z.z
Supported: timer,resource-priority,replaces,sdp-anat
Min-SE: 1800
User-Agent: Cisco-CUCM8.0
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Max-Forwards: 70
Contact: <sip:0049xxxxxxxxxx@10.x.x.x:5060>
Expires: 180
Allow-Events: presence
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Session-Expires: 1800;refresher=uac
P-Asserted-Identity: <sip:12@10.x.x.x>
Remote-Party-ID: <sip:12@x.x.x>;party=calling;screen=yes;privacy=off
Content-Type: application/sdp
Content-Length: 434
SDP Message
====================================================
v=0
-- The version is: 0
o=CiscoSystemsCCM-SIP 2000 3 IN IP4 10.x.x.x (cucm)
-- Owner/creator and session identifier:
-- User name: CiscoSystemsCCM-SIP
-- Session ID: 2000
-- Version: 3
-- Network type: Internet
-- Address type: IP4
-- Address: 10.x.x.x (cucm)
s=SIP Call
-- Session name: SIP Call
t=0 0
-- Start time: 0
-- Stop time: 0
m=audio 0 RTP/AVP 8
-- Media mode: audio service
-- Transport port: 0
-- Transport protocol: RTP with Audio/Video Profile
-- -------------------------------------------
-- Based on the following codec:
-- 8: The 8kHz PCMA codec
c=IN IP4 10.y.y.y
-- Network type: IP4 Internet\par -- The connection address: 10.y.y.y
a=rtpmap:8 PCMA/8000
-- The encoding of dynamic audio formats: 8 kHz PCMA codec
a=ptime:20
-- The duration of the packet: 20
m=image 18288 udptl t38
-- Media mode is a network access service and the access control method is 'no authentication required'.
c=IN IP4 0.0.0.0 < our Provider says that this is Wrong..... Bug???
-- Network type: IP4 Internet\par -- The connection address: 0.0.0.0
a=T38FaxVersion:0
-- other attribute's name
a=T38MaxBitRate:14400
-- other attribute's name
a=T38FaxFillBitRemoval:0
-- other attribute's name
a=T38FaxTranscodingMMR:0
-- other attribute's name
a=T38FaxTranscodingJBIG:0
-- other attribute's name
a=T38FaxRateManagement:transferredTCF
-- other attribute's name
a=T38FaxUdpEC:t38UDPRedundancy
-- other attribute's name
a=T38FaxMaxBuffer:200
-- other attribute's name
a=T38FaxMaxDatagram:72
-- other attribute's name
as explained above our Provider also created a sniffer file and they say that the cucm should provide the right IP Adress for the RDP Connection, 0.0.0.0 is wrong.
we tried this with a MGCP config, when i configure it with skinny, it cannot send and i cannot receive a fax.
any ideas?
