[cisco-voip] External Call Forwarding

Lelio Fulgenzi lelio at uoguelph.ca
Thu Jul 23 10:41:42 EDT 2009


Dan - Can you tell us if you have an auto-attendant or DIDs to your sets? I have an auto-attendant and am wondering if that will mess things up. 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
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"Bad grammar makes me [sic]" - Tshirt 


----- Original Message ----- 
From: "Daniel" <dan.voip at danofive.id.au> 
To: "Ryan Ratliff" <rratliff at cisco.com> 
Cc: cisco-voip at puck.nether.net 
Sent: Wednesday, July 22, 2009 7:19:16 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] External Call Forwarding 


Thanks Ryan worked a treat, I do appreciate the help that is provided by people in mailing lists like these ones, its a great way to network in the same community of practice. 

I did try this to yesterday arvo but used "first redirect number" which I thought made no difference (at that time), I didnt understand how it worked. 

Just so others looking at this thread know what the solution was read below. 

Calling Party Selection has multiple choices, (Excerpt From Call Manager Help) 

• Originator-Send the directory number of the calling device . 

• First Redirect Number-Send the directory number of the redirecting device. 

• Last Redirect Number-Send the directory number of the last device to redirect the call. 

• First Redirect Number (External)-Send the directory number of the first redirecting device with the external phone mask applied. 

• Last Redirect Number (External)-Send the directory number of the last redirecting device with the external phone mask applied. 



(Excerpt from Cisco Call Manager Fundamentals 2005 by John Alexander, Et Al.) 
"This setting determines what number is presented as the calling number when call forward occurs. 

If no forwarding at all has occured, all three values (Orignator, First Redirect Number, and last redirect number) contain the calling number of the orginator. If call manager has forwarded the call once, both the first redirect number and last redirect number are the calling number of the forwarding phone,while the orginator is the calling number of the originator. If call manager has forwarded the call twice, the originator is the calling number of the calling user, the first redirect number is the calling number of the first forwarding phone, and the last redirect number is the calling number of the last forwarding phone. If the call forwards more than once, the last redirect number reflects the calling number of the last device to forward the call. 

Why would you set this field? If the system that the gateway is connected to is in charge of maintaining billing records for calls from call manager, you might wish to bill not the actual originator of a call, but the party that caused the call to forward out the gateway. If the adjacent system uses the calling number to determine who to bill, this setting effectiviely allows you to control the billing." 

When I first tried "First Redirect Number" I thought it wasnt working as the number came up as the pilot DID number. After doing a debug I found that the extension number was being used as the calling number which does not align to the DID range so still the same issue. When using the "Last Redirect Number (External)" it worked as the extension number was applied to the phone number mask and the correct DID was received by the outbound gateway into the carrier and sent out. 

I have settled on using the "Last Redirect Number (External)" as my solution. 




On Wed, Jul 22, 2009 at 11:02 PM, Ryan Ratliff < rratliff at cisco.com > wrote: 


Look at the calling party selection setting on your outbound gateway. It's probably set to something like Originator currently, where you want something like First (or Last) Redirecting party. 

-Ryan 




On Jul 22, 2009, at 3:15 AM, Daniel wrote: 

Hi All, 

I have a question about call fordwarding. 

Scenario is that when an ip phone is forwarded to an external number and another external number calls that ip phone the call is forwarded to the external number. When the forwarded call reaches our outbound gateway the calling number is the external number that started the call and the called number is the external number that which is configured for the CFA. Our carrier does not let us use any other number then that which is in the DID range so they change the calling number to the pilot number of the DID range. 

Say the DID range is 123456XX (100 Numbers). Extension 5602 is CFA to 0456785856 (external mobile). External number 4555598598 calls 12345602 and it forwards to 0456785856. Currently the calling number that shows up on the mobile phone 0456785856 is12345600 (pilot of DID). I wouldl like the number to be 12345602. Debugging on the gateway shows the calling number as 4555598598 and the called number as 0456785856, our carrier does not recognise the calling number as part of the DID range so changes it to the pilot point. 

Is there anyway to configure the calling number to be the number of the phone that forwarded the call instead of the original external number? 

cheers, 

Daniel 
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