[Freeswitch-users] DTMF does not work from PSTN(cellphone or your home phone)

[Sayyed Mohammad Emami Razavi]

No digits are passed from cellphone or your home phone but when you press
any key from your registered IP phone on local lan, digits are passed very
well,
what is the problem? This problem is new and beforehand i had no problem
with dtmf from cellphone!
Every thing is good, all logs are good, my IVR that gets digits and
transfer calls are good and no problem exists in these aspects.
May my trunk filter, kill, resolve or delete all DTMF or kpml signals on
sofia sip?!
Is problem from some configuration in sofia?! any idea?
my provider(trunk and ...) uses cisco IPPBX and i use FS certainly.

$ tcpdump -nq -s 0 -A -vvv -i eth1 port 5060

*tcpdump from local IP phone:*
12:21:57.993515 IP (tos 0x60, ttl 63, id 0, offset 0, flags [DF], proto UDP
(17), length 1185)
    192.168.5.2.sip > 192.168.6.10.sip: [udp sum ok] UDP, length 1157
E`.... at .?..........
.......OINVITE sip:288 at 192.168.6.10:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK822577c262cc
From: "M.Emami" <sip:334 at 192.168.5.2
>;tag=425253~ba780a27-1f50-49c4-afac-f9a30086d185-30836414
To: <sip:288 at 192.168.6.10>
Date: Tue, 26 Mar 2013 04:13:41 GMT
Call-ID: 89560e00-15112075-31ab-205a8c0 at 192.168.5.2
Supported: timer,resource-priority,replaces
Min-SE:  1800
User-Agent: Cisco-CUCM8.6
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER,
SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Expires: 180
*Allow-Events: presence, kpml*
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Cisco-Guid: 2304118272-0000065536-0000023496-0033925312
Session-Expires:  1800
P-Asserted-Identity: "M.Emami" <sip:334 at 192.168.5.2>
Remote-Party-ID: "M.Emami" <sip:334 at 192.168.5.2
>;party=calling;screen=yes;privacy=off
Contact: <sip:334 at 192.168.5.2:5060>
Max-Forwards: 70
Content-Type: application/sdp
Content-Length: 212

v=0
o=CiscoSystemsCCM-SIP 425253 1 IN IP4 192.168.5.2
s=SIP Call
c=IN IP4 192.168.5.2
t=0 0
m=audio 27762 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=ptime:20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15

12:21:57.994024 IP (tos 0x0, ttl 64, id 60838, offset 0, flags [none],
proto UDP (17), length 361)
    192.168.6.10.sip > 192.168.5.2.sip: [bad udp cksum 4278!] UDP, length
333
E..i.... at ......
.........U..SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK822577c262cc
From: "M.Emami" <sip:334 at 192.168.5.2
>;tag=425253~ba780a27-1f50-49c4-afac-f9a30086d185-30836414
To: <sip:288 at 192.168.6.10>
Call-ID: 89560e00-15112075-31ab-205a8c0 at 192.168.5.2
CSeq: 101 INVITE
User-Agent: Configured by 2600hz!
Content-Length: 0


*tcpdump from outbound cell phone or any outbound calls:*
12:24:21.596280 IP (tos 0x60, ttl 63, id 0, offset 0, flags [DF], proto UDP
(17), length 1180)
    192.168.5.2.sip > 192.168.6.10.sip: [udp sum ok] UDP, length 1152
E`.... at .?..........
........INVITE sip:288 at 192.168.6.10:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK8230c25bb59
From: <sip:09102260264 at 192.168.5.2
>;tag=425297~ba780a27-1f50-49c4-afac-f9a30086d185-30836444
To: <sip:288 at 192.168.6.10>
Date: Tue, 26 Mar 2013 04:16:04 GMT
Call-ID: de921f80-15112104-31b0-205a8c0 at 192.168.5.2
Supported: timer,resource-priority,replaces
Min-SE:  1800
User-Agent: Cisco-CUCM8.6
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER,
SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Expires: 180
*Allow-Events: presence*
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Cisco-Guid: 3734118272-0000065536-0000023506-0033925312
Session-Expires:  1800
P-Asserted-Identity: <sip:09102260264 at 192.168.5.2>
Remote-Party-ID: <sip:09102260264 at 192.168.5.2
>;party=calling;screen=yes;privacy=off
Contact: <sip:09102260264 at 192.168.5.2:5060>
Max-Forwards: 69
Content-Type: application/sdp
Content-Length: 212

v=0
o=CiscoSystemsCCM-SIP 425297 1 IN IP4 192.168.5.2
s=SIP Call
c=IN IP4 192.168.5.2
t=0 0
m=audio 27790 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=ptime:20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15

12:24:21.596789 IP (tos 0x0, ttl 64, id 60847, offset 0, flags [none],
proto UDP (17), length 358)
    192.168.6.10.sip > 192.168.5.2.sip: [bad udp cksum c03a!] UDP, length
330
E..f.... at ..z...
.........R..SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.5.2:5060;branch=z9hG4bK8230c25bb59
From: <sip:09102260264 at 192.168.5.2
>;tag=425297~ba780a27-1f50-49c4-afac-f9a30086d185-30836444
To: <sip:288 at 192.168.6.10>
Call-ID: de921f80-15112104-31b0-205a8c0 at 192.168.5.2
CSeq: 101 INVITE
User-Agent: Configured by 2600hz!
Content-Length: 0
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