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Highlighted
Beginner

CME inbound SIP call transfered by CFwdALL has no audio in either direction

Internal calls can be transferred without problem.

Internal calls to single number reach (SNR) will connect to external number without a problem.

If the external call is answered,  the call can be transfered to an external number without any problems. 

External calls to SNR or SIP extension with CfwdALL configured will ring on the external number but on connection no audio is heard in either direction, the call signalling (hang up) still works.  I have found some posts relating to NAT port and firewall settings but they all seemed to be for Asterix not Cisco.

I have a UC520 running

telephony-service

CONFIG (Version=8.1)

=====================

Version 8.1

Max phoneload sccp version 17

Max dspfarm sccp version 18

Cisco Unified Communications Manager Express

UC520#ext set to forward all

UC520#

309856: Sep 19 14:31:03.685: %SEC-6-IPACCESSLOGP: list 151 denied udp

**.166.**.163(18410) -> **.152.**.234(16580), 1 packet 

309857: Sep 19 14:31:05.821: %SEC-6-IPACCESSLOGP: list 151 denied udp

**.238.**.137(23017) -> **.152.**.234(18167), 1 packet 

309858: //336901/7205C50DB4F4/SIP/Call/sipSPICallInfo:

The Call Setup Information is:

Call Control Block (CCB) : 0x88104AB8

State of The Call        : STATE_ACTIVE

TCP Sockets Used         : NO

Calling Number           : ****0080452

Called Number            : ****3394624

Source IP Address (Sig  ): **.152.**.234

Destn SIP Req Addr:Port  : **.40.**.175:5060

Destn SIP Resp Addr:Port : **.40.**.175:5060

Destination Name         : sip1.voipet.com

309859: //336901/7205C50DB4F4/SIP/Call/sipSPIMediaCallInfo:

Number of Media Streams: 1

Media Stream             : 1

Negotiated Codec         : g711ulaw

Negotiated Codec Bytes   : 160

Nego. Codec payload      : 0 (tx), 0 (rx)

Negotiated Dtmf-relay    : 6

Dtmf-relay Payload       : 101 (tx), 101 (rx)

Source IP Address (Media): **.152.**.234

Source IP Port    (Media): 16580

Destn  IP Address (Media): **.166.**.163

Destn  IP Port    (Media): 18410

Orig Destn IP Address:Port (Media): [ - ]:0

309860: //336900/FD4461C91B75/SIP/Call/sipSPICallInfo:

The Call Setup Information is:

Call Control Block (CCB) : 0x8812ACD0

State of The Call        : STATE_ACTIVE

TCP Sockets Used         : NO

Calling Number           : ****0080452

Called Number            : ****35822736

Source IP Address (Sig  ): **.152.**.234

Destn SIP Req Addr:Port  : **.40.**.175:5061

Destn SIP Resp Addr:Port : **.40.**.175:5061

Destination Name         : **.40.**.175

309861: //336900/FD4461C91B75/SIP/Call/sipSPIMediaCallInfo:

Number of Media Streams: 1

Media Stream             : 1

Negotiated Codec         : g711ulaw

Negotiated Codec Bytes   : 160

Nego. Codec payload      : 0 (tx), 0 (rx)

Negotiated Dtmf-relay    : 6

Dtmf-relay Payload       : 101 (tx), 101 (rx)

Source IP Address (Media): **.152.**.234

Source IP Port    (Media): 18166

Destn  IP Address (Media): **.238.**.137

Destn  IP Port    (Media): 23016

Orig Destn IP Address:Port (Media): [ - ]:0

309862: Sep 19 14:31:07.189: %SEC-6-IPACCESSLOGP: list 151 denied udp

**.166.**.163(18411) -> **.152.**.234(16581), 1 packet 

309863: //336901/7205C50DB4F4/SIP/Call/sipSPICallInfo:

The Call Setup Information is:

Call Control Block (CCB) : 0x88104AB8

State of The Call        : STATE_DEAD

TCP Sockets Used         : NO

Calling Number           : ****0080452

Called Number            : ****3394624

Source IP Address (Sig  ): **.152.**.234

Destn SIP Req Addr:Port  : **.40.**.175:5060

Destn SIP Resp Addr:Port : **.40.**.175:5060

Destination Name         : sip1.voipet.com

309864: //336901/7205C50DB4F4/SIP/Call/sipSPIMediaCallInfo:

Number of Media Streams: 1

Media Stream             : 1

Negotiated Codec         : g711ulaw

Negotiated Codec Bytes   : 160

Nego. Codec payload      : 0 (tx), 0 (rx)

Negotiated Dtmf-relay    : 6

Dtmf-relay Payload       : 101 (tx), 101 (rx)

Source IP Address (Media): **.152.**.234

Source IP Port    (Media): 16580

Destn  IP Address (Media): **.166.**.163

Destn  IP Port    (Media): 18410

Orig Destn IP Address:Port (Media): [ - ]:0

309865: //336901/7205C50DB4F4/SIP/Call/sipSPICallInfo:

Disconnect Cause (CC)    : 16

Disconnect Cause (SIP)   : 200

309866: //336900/FD4461C91B75/SIP/Call/sipSPICallInfo:

The Call Setup Information is:

Call Control Block (CCB) : 0x8812ACD0

State of The Call        : STATE_DEAD

TCP Sockets Used         : NO

Calling Number           : ****0080452

Called Number            : ****35822736

Source IP Address (Sig  ): **.152.**.234

Destn SIP Req Addr:Port  : **.40.**.175:5061

Destn SIP Resp Addr:Port : **.40.**.175:5061

Destination Name         : **.40.**.175

309867: //336900/FD4461C91B75/SIP/Call/sipSPIMediaCallInfo:

Number of Media Streams: 1

Media Stream             : 1

Negotiated Codec         : g711ulaw

Negotiated Codec Bytes   : 160

Nego. Codec payload      : 0 (tx), 0 (rx)

Negotiated Dtmf-relay    : 6

Dtmf-relay Payload       : 101 (tx), 101 (rx)

Source IP Address (Media): **.152.**.234

Source IP Port    (Media): 18166

Destn  IP Address (Media): **.238.**.137

Destn  IP Port    (Media): 23016

Orig Destn IP Address:Port (Media): [ - ]:0

309868: //336900/FD4461C91B75/SIP/Call/sipSPICallInfo:

Disconnect Cause (CC)    : 16

Disconnect Cause (SIP)   : 200

UC520#

UC520#call connects, no audio in either direction

4 REPLIES 4
Highlighted
Beginner

Hi,

   Did you manage to solve this? I am expiriencing the same issue with CUCM-H323-SIP TRUNK Provider.

Thanks

Highlighted

Problem solved.

  NAT on SIP Provider modem.

Highlighted

hi,

if the problem is 'NAT on SIP Provider modem' what is the solution?

Highlighted

Hi,

Ask them to provide you with static IP connection to them and not use the modem LAN-> (nat).

For example your current design may be:     UC500 (192.168.1.x) ->Ethernet->(192.168.1.254) modem ->(10.44.22.x) - Connection to ISP-> (x.x.x.x) ISP Side.

So ask them to change this to: UC500 (10.44.22.x) -> Ethernet->(10.44.22.y)modem->Connection to ISP

Thanks,

  Elias