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Voice Codec's in South Africa

Nathan Hardman
Level 1
Level 1

Hi All,

Please could somebody tell me the different voice codecs used in south africa, We have a customer over there who is having some problems as we believe its a codec issue

we have currently configured

voice class codec 1

codec preference 1 g729r8

codec preference 2 g711alaw

codec preference 3 g711ulaw

Adding the g711 allows some calls but not the landline numbers in south africa

Thanks

Nathan

12 Replies 12

paolo bevilacqua
Hall of Fame
Hall of Fame

Post "debug ccsip message" with "term mon", for both a succesful and failed call.

Hi Paolo,

The x.x.x.x is the cme address and this is for a failed call.

Aug 14 14:49:56.054: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

INVITE sip:00972592561697@X.X.X.X SIP/2.0

To: 00972592561697<00972592561697>

From: 5550000<5550000>;tag=4f37d602

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-63a3741ae6e16eb828f9c45c2b668dd4;rport

Call-ID: 63a3741ae6e16eb828f9c45c2b668dd4

CSeq: 1 INVITE

Contact: <5550000>

Max-Forwards: 70

Allow: INVITE, ACK, CANCEL, BYE

User-Agent: sipcli/v1.8

Content-Type: application/sdp

Content-Length: 256

v=0

o=sipcli-Session 819626332 2051453383 IN IP4 192.168.1.2

s=sipcli

c=IN IP4 46.210.224.245

t=0 0

m=audio 20516 RTP/AVP 0 8 101

a=fmtp:101 0-15

a=rtpmap:0 PCMU/8000

a=rtpmap:8 PCMA/8000

a=rtpmap:101 telephone-event/8000

a=ptime:20

a=sendrecv

Aug 14 14:49:56.062: //1658/25B75A1E9179/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-63a3741ae6e16eb828f9c45c2b668dd4;rport

From: 5550000<5550000>;tag=4f37d602

To: 00972592561697<00972592561697>

Date: Tue, 14 Aug 2012 14:49:56 GMT

Call-ID: 63a3741ae6e16eb828f9c45c2b668dd4

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Content-Length: 0

Aug 14 14:49:56.062: //1658/25B75A1E9179/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-63a3741ae6e16eb828f9c45c2b668dd4;rport

From: 5550000<5550000>;tag=4f37d602

To: 00972592561697<00972592561697>;tag=5C97BA34-1BD7

Date: Tue, 14 Aug 2012 14:49:56 GMT

Call-ID: 63a3741ae6e16eb828f9c45c2b668dd4

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:49:56.162: //1658/25B75A1E9179/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-63a3741ae6e16eb828f9c45c2b668dd4;rport

From: 5550000<5550000>;tag=4f37d602

To: 00972592561697<00972592561697>;tag=5C97BA34-1BD7

Date: Tue, 14 Aug 2012 14:49:56 GMT

Call-ID: 63a3741ae6e16eb828f9c45c2b668dd4

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:49:56.362: //1658/25B75A1E9179/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-63a3741ae6e16eb828f9c45c2b668dd4;rport

From: 5550000<5550000>;tag=4f37d602

To: 00972592561697<00972592561697>;tag=5C97BA34-1BD7

Date: Tue, 14 Aug 2012 14:49:56 GMT

Call-ID: 63a3741ae6e16eb828f9c45c2b668dd4

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:49:56.762: //1658/25B75A1E9179/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-63a3741ae6e16eb828f9c45c2b668dd4;rport

From: 5550000<5550000>;tag=4f37d602

To: 00972592561697<00972592561697>;tag=5C97BA34-1BD7

Date: Tue, 14 Aug 2012 14:49:56 GMT

Call-ID: 63a3741ae6e16eb828f9c45c2b668dd4

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:49:56.814: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

ACK sip:00972592561697@X.X.X.X SIP/2.0

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-63a3741ae6e16eb828f9c45c2b668dd4;rport

From: 5550000<5550000>;tag=4f37d602

To: 00972592561697<00972592561697>;tag=5C97BA34-1BD7

Call-ID: 63a3741ae6e16eb828f9c45c2b668dd4

CSeq: 1 ACK

Max-Forwards: 70

Content-Length: 0

Aug 14 14:49:56.814: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

ACK sip:00972592561697@X.X.X.X SIP/2.0

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-63a3741ae6e16eb828f9c45c2b668dd4;rport

From: 5550000<5550000>;tag=4f37d602

To: 00972592561697<00972592561697>;tag=5C97BA34-1BD7

Call-ID: 63a3741ae6e16eb828f9c45c2b668dd4

CSeq: 1 ACK

Max-Forwards: 70

Content-Length: 0

Aug 14 14:49:56.890: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

ACK sip:00972592561697@X.X.X.X SIP/2.0

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-63a3741ae6e16eb828f9c45c2b668dd4;rport

From: 5550000<5550000>;tag=4f37d602

To: 00972592561697<00972592561697>;tag=5C97BA34-1BD7

Call-ID: 63a3741ae6e16eb828f9c45c2b668dd4

CSeq: 1 ACK

Max-Forwards: 70

Content-Length: 0

Aug 14 14:49:59.090: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

INVITE sip:000972592561697@X.X.X.X SIP/2.0

To: 000972592561697<000972592561697>

From: 5550000<5550000>;tag=a5bdfaed

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-6ec9d3abf0a89ae71254386a683a2304;rport

Call-ID: 6ec9d3abf0a89ae71254386a683a2304

CSeq: 1 INVITE

Contact: <5550000>

Max-Forwards: 70

Allow: INVITE, ACK, CANCEL, BYE

User-Agent: sipcli/v1.8

Content-Type: application/sdp

Content-Length: 256

v=0

o=sipcli-Session 1952582833 255178943 IN IP4 192.168.1.2

s=sipcli

c=IN IP4 46.210.224.245

t=0 0

m=audio 20516 RTP/AVP 0 8 101

a=fmtp:101 0-15

a=rtpmap:0 PCMU/8000

a=rtpmap:8 PCMA/8000

a=rtpmap:101 telephone-event/8000

a=ptime:20

a=sendrecv

Aug 14 14:49:59.098: //1659/278737C6917E/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-6ec9d3abf0a89ae71254386a683a2304;rport

From: 5550000<5550000>;tag=a5bdfaed

To: 000972592561697<000972592561697>

Date: Tue, 14 Aug 2012 14:49:59 GMT

Call-ID: 6ec9d3abf0a89ae71254386a683a2304

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Content-Length: 0

Aug 14 14:49:59.098: //1659/278737C6917E/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-6ec9d3abf0a89ae71254386a683a2304;rport

From: 5550000<5550000>;tag=a5bdfaed

To: 000972592561697<000972592561697>;tag=5C97C610-23AD

Date: Tue, 14 Aug 2012 14:49:59 GMT

Call-ID: 6ec9d3abf0a89ae71254386a683a2304

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:49:59.198: //1659/278737C6917E/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-6ec9d3abf0a89ae71254386a683a2304;rport

From: 5550000<5550000>;tag=a5bdfaed

To: 000972592561697<000972592561697>;tag=5C97C610-23AD

Date: Tue, 14 Aug 2012 14:49:59 GMT

Call-ID: 6ec9d3abf0a89ae71254386a683a2304

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:49:59.398: //1659/278737C6917E/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-6ec9d3abf0a89ae71254386a683a2304;rport

From: 5550000<5550000>;tag=a5bdfaed

To: 000972592561697<000972592561697>;tag=5C97C610-23AD

Date: Tue, 14 Aug 2012 14:49:59 GMT

Call-ID: 6ec9d3abf0a89ae71254386a683a2304

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:49:59.798: //1659/278737C6917E/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-6ec9d3abf0a89ae71254386a683a2304;rport

From: 5550000<5550000>;tag=a5bdfaed

To: 000972592561697<000972592561697>;tag=5C97C610-23AD

Date: Tue, 14 Aug 2012 14:49:59 GMT

Call-ID: 6ec9d3abf0a89ae71254386a683a2304

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:49:59.990: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

ACK sip:000972592561697@X.X.X.X SIP/2.0

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-6ec9d3abf0a89ae71254386a683a2304;rport

From: 5550000<5550000>;tag=a5bdfaed

To: 000972592561697<000972592561697>;tag=5C97C610-23AD

Call-ID: 6ec9d3abf0a89ae71254386a683a2304

CSeq: 1 ACK

Max-Forwards: 70

Content-Length: 0

Aug 14 14:50:01.654: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

INVITE sip:900972592561697@X.X.X.X SIP/2.0

To: 900972592561697<900972592561697>

From: 5550000<5550000>;tag=dec5d053

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-feb386a3c78bcdae749f5f38bda2346d;rport

Call-ID: feb386a3c78bcdae749f5f38bda2346d

CSeq: 1 INVITE

Contact: <5550000>

Max-Forwards: 70

Allow: INVITE, ACK, CANCEL, BYE

User-Agent: sipcli/v1.8

Content-Type: application/sdp

Content-Length: 256

v=0

o=sipcli-Session 1043361429 843874198 IN IP4 192.168.1.2

s=sipcli

c=IN IP4 46.210.224.245

t=0 0

m=audio 20516 RTP/AVP 0 8 101

a=fmtp:101 0-15

a=rtpmap:0 PCMU/8000

a=rtpmap:8 PCMA/8000

a=rtpmap:101 telephone-event/8000

a=ptime:20

a=sendrecv

Aug 14 14:50:01.658: //1660/290DD68C9183/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-feb386a3c78bcdae749f5f38bda2346d;rport

From: 5550000<5550000>;tag=dec5d053

To: 900972592561697<900972592561697>

Date: Tue, 14 Aug 2012 14:50:01 GMT

Call-ID: feb386a3c78bcdae749f5f38bda2346d

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Content-Length: 0

Aug 14 14:50:01.658: //1660/290DD68C9183/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-feb386a3c78bcdae749f5f38bda2346d;rport

From: 5550000<5550000>;tag=dec5d053

To: 900972592561697<900972592561697>;tag=5C97D010-1B87

Date: Tue, 14 Aug 2012 14:50:01 GMT

Call-ID: feb386a3c78bcdae749f5f38bda2346d

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:50:01.758: //1660/290DD68C9183/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-feb386a3c78bcdae749f5f38bda2346d;rport

From: 5550000<5550000>;tag=dec5d053

To: 900972592561697<900972592561697>;tag=5C97D010-1B87

Date: Tue, 14 Aug 2012 14:50:01 GMT

Call-ID: feb386a3c78bcdae749f5f38bda2346d

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:50:01.958: //1660/290DD68C9183/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 403 Forbidden

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-feb386a3c78bcdae749f5f38bda2346d;rport

From: 5550000<5550000>;tag=dec5d053

To: 900972592561697<900972592561697>;tag=5C97D010-1B87

Date: Tue, 14 Aug 2012 14:50:01 GMT

Call-ID: feb386a3c78bcdae749f5f38bda2346d

CSeq: 1 INVITE

Allow-Events: telephone-event

Server: Cisco-SIPGateway/IOS-12.x

Reason: Q.850;cause=21

Content-Length: 0

Aug 14 14:50:02.254: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

ACK sip:900972592561697@X.X.X.X SIP/2.0

Via: SIP/2.0/UDP 46.210.224.245:50177;branch=z9hG4bK-feb386a3c78bcdae749f5f38bda2346d;rport

From: 5550000<5550000>;tag=dec5d053

To: 900972592561697<900972592561697>;tag=5C97D010-1B87

Call-ID: feb386a3c78bcdae749f5f38bda2346d

CSeq: 1 ACK

Max-Forwards: 70

Content-Length: 0

Looks like you may have IOS toll fraud enabled, either adjust it or remove it completely.

voice service voip

no ip address trusted authenticate

Chris

Hi Chris,

I currently have this under Voice service voip

voice service voip

ip address trusted list

  ipv4 Y.Y.Y.Y 255.255.255.255

The y.y.y.y is the sip proxy.

But wouldn't that affect all calls not just some?

Thanks

Nathan

Received:

INVITE sip:00972592561697@X.X.X.X SIP/2.0

This is someone trying to call Israel using your CME, now beside suffering fraud attempts, the actuall call trace must be another.

oh ok,

What is the best way to stop this and the customer musn't of dialed the number yet then.

You can't really stop them, but as they see you're not allowing calls, they should give up anyway.

This is a failed call

X.X.X.X cme

Y.Y.Y.Y sip proxy

Aug 14 15:17:23.021: //1664/F18C4CC0918E/SIP/Msg/ccsipDisplayMsg:

Sent:

INVITE sip:0215565967@Y.Y.Y.Y:5060 SIP/2.0

Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bK69A15D3

From: "Dennis Williams" <0873540547>;tag=5CB0DBA8-68D

To: <0215565967>

Date: Tue, 14 Aug 2012 15:17:23 GMT

Call-ID: FB61FEA0-E55911E1-9193ACB0-F834266F@X.X.X.X

Supported: 100rel,timer,resource-priority,replaces,sdp-anat

Min-SE:  1800

Cisco-Guid: 4052503744-3847819745-2442046640-4164167279

User-Agent: Cisco-SIPGateway/IOS-12.x

Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER

CSeq: 101 INVITE

Max-Forwards: 70

Timestamp: 1344957443

Contact: <0873540547>

Expires: 180

Allow-Events: telephone-event

Content-Type: application/sdp

Content-Disposition: session;handling=required

Content-Length: 312

v=0

o=CiscoSystemsSIP-GW-UserAgent 2551 8171 IN IP4 X.X.X.X

s=SIP Call

c=IN IP4 X.X.X.X

t=0 0

m=audio 31554 RTP/AVP 18 8 0 101

c=IN IP4 X.X.X.X

a=rtpmap:18 G729/8000

a=fmtp:18 annexb=no

a=rtpmap:8 PCMA/8000

a=rtpmap:0 PCMU/8000

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-16

Aug 14 15:17:23.029: //1664/F18C4CC0918E/SIP/Msg/ccsipDisplayMsg:

Received:

SIP/2.0 100 Trying

Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bK69A15D3

From: "Dennis Williams" <0873540547>;tag=5CB0DBA8-68D

To: <0215565967>

Call-ID: FB61FEA0-E55911E1-9193ACB0-F834266F@X.X.X.X

CSeq: 101 INVITE

Timestamp: 1344957443

Aug 14 15:17:24.001: //1664/F18C4CC0918E/SIP/Msg/ccsipDisplayMsg:

Received:

SIP/2.0 180 Ringing

Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bK69A15D3

From: "Dennis Williams" <0873540547>;tag=5CB0DBA8-68D

To: <0215565967>;tag=1434736814-1344957443991

Call-ID: FB61FEA0-E55911E1-9193ACB0-F834266F@X.X.X.X

CSeq: 101 INVITE

Timestamp: 1344957443

Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,NOTIFY

Supported:

Contact: <0215565967>

Content-Length: 0

Aug 14 15:17:33.073: //1664/F18C4CC0918E/SIP/Msg/ccsipDisplayMsg:

Received:

SIP/2.0 200 OK

Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bK69A15D3

From: "Dennis Williams" <0873540547>;tag=5CB0DBA8-68D

To: <0215565967>;tag=1434736814-1344957443991

Call-ID: FB61FEA0-E55911E1-9193ACB0-F834266F@X.X.X.X

CSeq: 101 INVITE

Timestamp: 1344957443

Supported:

Contact: <0215565967>

Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,NOTIFY,UPDATE

Accept: application/media_control+xml,application/sdp,application/xml

Content-Type: application/sdp

Content-Length: 352

v=0

o=BroadWorks 91470219 1 IN IP4 Y.Y.Y.Y

s=-

c=IN IP4 Y.Y.Y.Y

t=0 0

m=audio 20006 RTP/AVP 18 101 100

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-15

a=rtpmap:100 X-NSE/8000

a=fmtp:100 200-202

a=X-sqn:0

a=X-cap: 1 audio RTP/AVP 100

a=X-cpar: a=rtpmap:100 X-NSE/8000

a=X-cpar: a=fmtp:100 200-202

a=X-cap: 2 image udptl t38

Aug 14 15:17:33.077: //1664/F18C4CC0918E/SIP/Msg/ccsipDisplayMsg:

Sent:

ACK sip:0215565967@Y.Y.Y.Y:5060;transport=udp SIP/2.0

Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bK69B241

From: "Dennis Williams" <0873540547>;tag=5CB0DBA8-68D

To: <0215565967>;tag=1434736814-1344957443991

Date: Tue, 14 Aug 2012 15:17:23 GMT

Call-ID: FB61FEA0-E55911E1-9193ACB0-F834266F@X.X.X.X

Max-Forwards: 70

CSeq: 101 ACK

Allow-Events: telephone-event

Content-Length: 0

Aug 14 15:17:33.077: //1664/F18C4CC0918E/SIP/Msg/ccsipDisplayMsg:

Sent:

BYE sip:0215565967@Y.Y.Y.Y:5060;transport=udp SIP/2.0

Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bK69C2171

From: "Dennis Williams" <0873540547>;tag=5CB0DBA8-68D

To: <0215565967>;tag=1434736814-1344957443991

Date: Tue, 14 Aug 2012 15:17:23 GMT

Call-ID: FB61FEA0-E55911E1-9193ACB0-F834266F@X.X.X.X

User-Agent: Cisco-SIPGateway/IOS-12.x

Max-Forwards: 70

Timestamp: 1344957453

CSeq: 102 BYE

Reason: Q.850;cause=65

P-RTP-Stat: PS=0,OS=0,PR=492,OR=9840,PL=0,JI=0,LA=0,DU=1555104

Content-Length: 0

Aug 14 15:17:33.113: //1664/F18C4CC0918E/SIP/Msg/ccsipDisplayMsg:

Received:

SIP/2.0 200 OK

Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bK69C2171

From: "Dennis Williams" <0873540547>;tag=5CB0DBA8-68D

To: <0215565967>;tag=1434736814-1344957443991

Call-ID: FB61FEA0-E55911E1-9193ACB0-F834266F@X.X.X.X

Timestamp: 1344957453

CSeq: 102 BYE

Content-Length: 0

Seems like they called a fax possibly?

This is a house number of the contact in South Africa.

Sorry i forgot to mention it says number not obtainable on the phone i think he said.

Then you have to complain to provider, because if the calling and called number are right (pls double check),as  it's their responsability to connect the call.

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