MGCP to H323, call forward failed

[chuankokping]

Hi,

I previously configure the voice gateway using MGCP, and when i do a call forwarding in my phone to  (let's say my mobile phone or some other ext. number), it works. When people call my desk phone, it will forward to my mobile phone.

Recently, i have change the MGCP gateway to H323 gateway, all calls are working fine but the call forward doesnt work anymore. i run a debug in the h323 gateway, i can see incoming call from ISDN to the DID, but after that, it straight away release the calls and doent show the forwarding call log. this show that CM doesnt make the forwarding call. I have tried the below:

1. call forward to other ext. number, incoming from ISDN, call forward failed.

2. call forward to other mobile number, incoming from ISDN, call forward failed.

3. call forward to other ext. number, dial from ext. no., call forward OK.

Does anyone face this issue before? Your suggestion is much appreciate.

Thanks

[Amer rajai Sha'er]

Hello,

It's not very much clear.

What you are saying is :

when the call comes from the VG to your phone it is working but if you do a call forward all to your mobile it doesn't work right ?

Is there any other case?

Amer

[chuankokping]

HI,

the senario is

isdn <--> h323 gateway <-->CM <--> Ip Phone (eg: ext no 1234)

so for normal incoming and outgoing call are working perfectly. but once my ip phone (1234) make a call forward to my mobile, the incoming to the 1234 failed, it never forward to my mobile.

[Amer rajai Sha'er]

Hello,

Beside the Call forawrd all on the extension configuration , is there a CSS ??

Can you please try by assigning a CSS to the call forward all under the extension configuration and try.

Amer

[nitsinha]

When an IP phone(1111) is forwarded to a mobile phone and another internal phone(2222) calls 1111, what happens? Does call forwarding still fail? Or does it only fail if the original caller is an external PSTN caller?

Check the Call forward CSS also to make sure that it has access to the route pattern in the partition to make call to the mobile phone.

Regards

Nitesh

PS: pl rate helpful posts

[nitsinha]

Also make sure you have dial-peer on the H323 gateway to route the call out to the mobile phone.

debug voip dialpeer----------->to check which dialpeers are hit

debug voip ccapi inout

debug isdn q931------------> if the outboung call is over a PRI

Hope that helps

Regards

Nitesh

PS:Pl rate helpful posts

[chuankokping]

Hi All

ext no: 0210 forward all to 0123456789 ( mobile phone)

i have done the below:

     1. call from local ext. no. (1239) to 0210, call can forward to my mobile.

     2. call from pstn line (0122611469) to the DID 88880210, call get busy tone.

i have already create a CSS which included everything, but still the same.

capture the debug record, i found the below:

Apr 11 09:38:54.487: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8  callref = 0x011B
        Sending Complete
        Bearer Capability i = 0x8090A3
                Standard = CCITT
                Transfer Capability = Speech
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA1839E
                Preferred, Channel 30
        Calling Party Number i = 0x0183, '0122611469'
                Plan:ISDN, Type:Unknown
        Called Party Number i = 0x81, '0210'
                Plan:ISDN, Type:Unknown
Apr 11 09:38:54.487: ISDN Se0/0/0:15 Q931: Received SETUP  callref = 0x811B callID = 0x13B1 switch = primary-4ess interface = User
Apr 11 09:38:54.491: ISDN Se0/0/0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x811B
        Channel ID i = 0xA9839E
                Exclusive, Channel 30
Apr 11 09:38:54.507: ISDN Se0/0/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x811B
        Cause i = 0x809B - Destination out of order
Apr 11 09:38:54.531: ISDN Se0/0/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x011B
Apr 11 09:38:54.531: ISDN Se0/0/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x811B
Apr 11 09:39:00.183: ISDN Se0/0/0:15 Q931: pak_private_number: Invalid type/plan 0x0 0x0 may be overriden; sw-type 2

there is no call calling to the forwarded number. The call hits the dialpeer created. But when i capture in MGCP gateway,

the flow is something like A call to 0210, follow by A call to 0123456789 (forwarded mobile phone number).

My dial-peer

dial-peer voice 10 voip
destination-pattern 0...
session target ipv4:10.1.254.37
!

dial-peer voice 11 voip
destination-pattern 8...
session target ipv4:10.1.254.37
!
dial-peer voice 101 pots
destination-pattern 01........
incoming called-number [0,8]...
no digit-strip
direct-inward-dial
port 0/0/0:15

Anyone has any idea?

[Amer rajai Sha'er]

Hello,

I wanna ask you something silly , maybe it is the case.

As you know , there is a enterprise parameter for off-net to off-net transfer allowed , is it allowed ?

Amer

[chuankokping]

Hi Amer

it is already allow.

thanks

[chuankokping]

in the gateway global configuration terminal added commands

voice call send-alert

voice call convert-discpi-to-prog

In the isdn serial interface added the command

isdn send-alert

isdn send-complete

and it's work.