Phone get ip from router ok
and register ok
but when try to call another pheones it's can't make call and just exit to first screen with error SIP/2.0 488 Not Acceptable Media
and this erro with only 3905 phones
how can i solve this problem
*Nov 17 05:57:08.830: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
INVITE sip:2222@xxx.xxx.200.254:5060 SIP/2.0
Via: SIP/2.0/UDP xxx.xxx.200.13:5060;rport;branch=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Max-Forwards: 70
From: "2210" <sip:2210@xxx.xxx.200.254>;tag=05609e95-eedb-4596-b423-2695fdbf14f5
To: sip:2222@xxx.xxx.200.254
Contact: <sip:87B4-3CF@xxx.xxx.200.13:5060>;+sip.instance="<urn:uuid:00000000-0000-0000-0000-00ccfc4b9ecb>";+u.sip!devicename.ccm.cisco.com="SEP00CCFC4B9ECB";+u.sip!model.ccm.cisco.com="592"
Call-ID: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
CSeq: 32405 INVITE
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
User-Agent: Cisco-CP3905/9.2.1
Supported: replaces,join,sdp-anat,norefersub,extended-refer,X-cisco-callinfo,X-cisco-serviceuri,X-cisco-escapecodes,X-cisco-service-control,X-cisco-monrec,X-cisco-config,X-cisco-sis-4.0.0,X-cisco-xsi-7.0.1
Expires: 180
Accept: application/sdp
Allow-Events: kpml,dialog
Remote-Party-ID: "2210"<sip:2210@xxx.xxx.200.254:5060>;privacy=off
Content-Type: application/sdp
Content-Length: 296
v=0
o=- 2208989416 2208989416 IN IP4 xxx.xxx.200.13
s=FOXPHONE
c=IN IP4 xxx.xxx.200.13
t=0 0
a=X-nat:0
m=audio 16390 RTP/AVP 0 8 18 111
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=yes
a=sendrecv
a=rtpmap:111 telephone-event/8000
a=fmtp:111 0-15
*Nov 17 05:57:08.834: //51/16575AA08072/SIP/Msg/ccsipDisplayMsg:
Sent:
SIP/2.0 488 Not Acceptable Media
Via: SIP/2.0/UDP xxx.xxx.200.13:5060;rport;branch=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
From: "2210" <sip:2210@xxx.xxx.200.254>;tag=05609e95-eedb-4596-b423-2695fdbf14f5
To: sip:2222@xxx.xxx.200.254;tag=9A0EA0-1E75
Date: Mon, 17 Nov 2025 05:57:08 GMT
Call-ID: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
CSeq: 32405 INVITE
Allow-Events: telephone-event
Reason: Q.850;cause=65
Server: Cisco-SIPGateway/IOS-15.7.3.M8
Session-ID: 3e569295f6365d949f9248dc8b7cf436;remote=eeae017d30bc5527a761bbccb00100ac
Content-Length: 0
*Nov 17 05:57:08.850: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
ACK sip:2222@xxx.xxx.200.254:5060 SIP/2.0
Via: SIP/2.0/UDP xxx.xxx.200.13:5060;rport;branch=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Max-Forwards: 70
From: "2210" <sip:2210@xxx.xxx.200.254>;tag=05609e95-eedb-4596-b423-2695fdbf14f5
To: sip:2222@xxx.xxx.200.254;tag=9A0EA0-1E75
Call-ID: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
CSeq: 32405 ACK
Content-Length: 0
