Two Calling party number issue

[Petr Nyvlt]

Hello,

I have an issue with incomming calls on E1 line from specific sites abroad .

From time to time we receive in call SETUP two different Calling Party Numbers  .

For example:

Calling Party Number i = 0x0080, \'00492155762497\' 

Calling Party Number i = 0x0083, \'00492155760\'

I have an information from provider that the first number (0x0080) is the Calling Party Number 

and the second (0x0083) is Generic Number (Additional Calling Party Number) 

I found that the second number should be used in case you wish to use a different presentation/display number than the 'main' number. It may, for example, be a direct dial-in extension number of calling operator.

The issue is that this number is incorrect and it is displayed as calling DN on IP phones.

I need to ignore that and use the original Calling Party Number (0x0080).

Is there some solution how to set up the gateway for that?

Thank you for any suggestions.

[Manish Gogna]

Hi Petr,

This clearly looks to be an issue from Telco, they should be sending just one calling party i for one call setup. Rather than trying to fix it on your gateway you should ask the Telco to fix this at their end.

Manish

[Petr Nyvlt]

Hi Manish,

According to information from provider, this is not incorrect SETUP message.

The second number is Generic Number (Additional Calling Party Number). I thing it should be possible to handle with that on cisco gateway.

[Vivek Batra]

Although I agree with Manish, you can check with following command under serial interface;

isdn callling-party-num {network-provided | user-provided} {first | last}

Please check with above combinations and see if it serves your purpose.

- Vivek

[layla.abunejem]

it worked for me, thanks !

my Telco is sending both local and international format, so we picked the local one

May 30 12:20:03: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8 callref = 0x5781
Sending Complete
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA9839F
Exclusive, Channel 31
Progress Ind i = 0x8A81 - Call not end-to-end ISDN, may have in-band info
Calling Party Number i = 0x0080, '9655071XXXX'
Plan:Unknown, Type:Unknown
Calling Party Number i = 0x0083, '5071XXXX'
Plan:Unknown, Type:Unknown
Called Party Number i = 0x81, '320'
Plan:ISDN, Type:Unknown

interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
isdn calling-party-num network-provided second