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Call forward external with no ring-back

epasqualotto
Level 1
Level 1

Hi all, on my CCM 8.6.2 when a user set the CFA on external number (ex. mobile phone) who call the extension from outside don't hear the ring-back.

Ring-back: internal DN -> internal DN (with external CFA)

No ring-back: outside caller -> voicegateway -> internal DN (with external CFA)

on answer all is working and I can hear both voice.

12 Replies 12

acampbell
VIP Alumni
VIP Alumni

Hi,

What type of gateway are you using.

SIP, H323 , MGCP.

Can you post the the config.

Regards

Alex

Regards, Alex. Please rate useful posts.

The gateway is H323 (2921), and the call coming in by E1 line and come out with the same E1 controller.

this is my conf:

!

dial-peer voice 10 pots

translation-profile incoming zero

service num2name

translate-outgoing calling 3

translate-outgoing called 3

incoming called-number .T

fax rate disable

supplementary-service pass-through

direct-inward-dial

!

dial-peer voice 33 voip

destination-pattern 1234567..

translate-outgoing called 3

session target ipv4:192.168.55.1

dtmf-relay rtp-nte cisco-rtp h245-alphanumeric

codec g711alaw

!

dial-peer voice 32 pots

destination-pattern 0T

port 0/1/0:15

!

Incoming dial-peer (from outside): 10

dial-peer to CM(8.6): 33

dial-peer to outside (to reach extenal number): 32

On the Call Manager (192.168.55.1) I have a DN with CFA to external number

Any suggestion?

Add the following to your pots dial-peers:

progress_ind setup enable 3

progress_ind progress enable 8

HTH,

Chris

Thanks Chris but this not solve my issue.

When I debug isdn q931 I see this two lines:

    Locking Shift to Codeset 6

    Codeset 6 IE 0x1A  i = 0xC40C

I don't know if can help because I don't know what they means.

Enrico.

These have nothing to do with your problem. Check following document:

http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a0080094c33.shtml

The strange things is that it works with every number except one that the customer need!! If I call directly I hear the ringback but not when I forward a call to it.

I my debug I see:

voicegw_ia#

Mar  5 16:41:24.827: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8  callref = 0x0030

    Sending Complete

    Bearer Capability i = 0x8090A3

        Standard = CCITT

        Transfer Capability = Speech 

        Transfer Mode = Circuit

        Transfer Rate = 64 kbit/s

    Channel ID i = 0xA1838D

        Preferred, Channel 13

    Calling Party Number i = 0x0181, 'my mobile phone'

        Plan:ISDN, Type:Unknown

    Called Party Number i = 0xA1, 'PRI number with CFA'

        Plan:ISDN, Type:National

    High Layer Compat i = 0x9181

Mar  5 16:41:24.827: ISDN Se0/1/0:15 Q931: Received SETUP  callref = 0x8030 callID = 0x0AC0 switch = primary-net5 interface = User

Mar  5 16:41:24.847: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x8030

    Channel ID i = 0xA9838D

        Exclusive, Channel 13

Mar  5 16:41:24.855: ISDN Se0/1/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x0, Calling num 3473292620

Mar  5 16:41:24.859: ISDN Se0/1/0:15 Q931: Sending SETUP  callref = 0x0B1C callID = 0x8D70 switch = primary-net5 interface = User

Mar  5 16:41:24.859: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8  callref = 0x0B1C

    Bearer Capability i = 0x8090A3

        Standard = CCITT

        Transfer Capability = Speech 

        Transfer Mode = Circuit

        Transfer Rate = 64 kbit/s

    Channel ID i = 0xA98382

        Exclusive, Channel 2

    Progress Ind i = 0x8183 - Origination address is non-ISDN 

    Calling Party Number i = 0x0081, 'my mobile phone'

        Plan:Unknown, Type:Unknown

    Called Party Number i = 0x80, 'destination without ringback'

        Plan:Unknown, Type:Unknown

Mar  5 16:41:24.895: ISDN Se0/1/0:15 Q931: RX <- SETUP_ACK pd = 8  callref = 0x8B1C

    Channel ID i = 0xA98382

        Exclusive, Channel 2

voicegw_ia#

voicegw_ia#

voicegw_ia#

voicegw_ia#

Mar  5 16:41:30.479: ISDN Se0/1/0:15 Q931: RX <- CALL_PROC pd = 8  callref = 0x8B1C

    Progress Ind i = 0x8482 - Destination address is non-ISDN

voicegw_ia#

voicegw_ia#

Enrico,

try

progress_ind setup enable 3

under voip DP that points to CM.

This is what I have:

dial-peer voice 33 voip

destination-pattern 12345678..

progress_ind setup enable 3

progress_ind progress enable 8

translate-outgoing called 3

session target ipv4:192.168.xx.1

dtmf-relay rtp-nte cisco-rtp h245-alphanumeric

codec g711ulaw

!

But I hear no ringback on forwarded call (to outside)

What about the pots DP ?

These are my dial-peer, the strange things is that with some number it works

// outgoing DP

dial-peer voice 32 pots
destination-pattern 0T
progress_ind setup enable 3
progress_ind progress enable 8
port 0/1/0:15
!

// incoming DP

dial-peer voice 10 pots

translation-profile incoming zero

translate-outgoing calling 3

translate-outgoing called 3

incoming called-number .T

fax rate disable

supplementary-service pass-through

direct-inward-dial

!

You should see that with other numbers, alerting is received on the outbound call, and that causes the tone to be heard.

Can you try 'voice call send-alert'.

I found that the number where I forward the call to is a voip account forwarded to a mobile number.

So:

My PRI -> My internal phone (with CFA) -> extenal VOIP account (through same PRI) (with CFA on mobile) -> mobile phone

So the situation is a bit strange (two nested CFA ), if I remove the last forward on mobile all works.

Maybe isn't a problem on the Cisco side....

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