Cisco Cisco Customer Voice Portal 8.0(1)

calls from the TDM calls using a gateway.) On the gateway, the "signaling forward unconditional"
setting is required on the "voice service voip" section of the IOS configuration. This allows
forwarding of the Generic Type Descriptor (GTD) data of the call in the SIP INVITE to Unified
CVP in a multipart mime content type media format. The Unified CVP SIP Service extracts the
GTD section of the call and parses out the parameters that are configured to be passed to Unified
ICME in the payload field of the ICM Service's "NEW CALL" message "usertouserinfo." ISDN
call parameters, which are forwarded in the GTD payload, as set in the Unified ICME script,
cannot be sent in outbound SIP calls. In addition to sending ISDN data inbound to Unified
ICME, the GTD section of the inbound call leg will be passed along untouched in the outbound
call leg by the Unified CVP SIP Service.

Note: The SIP Service only reads the data and sends it to Unified ICME (it does not modify
the data).

How It Works

Assume the following ISDN data is sent in the call to Unified CVP:

PRN,isdn*,,ATT5*,

USI,rate,c,s,c,1

USI,lay1,ulaw

TMR,00

CPN,00,,u,5900

CPC,09

FCI,,,,,,,y,

UUS,3,3132333435

GCI,87c0c79d91dd11daa9c4000bfda207f2

The Generic Type Descriptor (GTD) Parameter Forwarding configuration setting in the
Operations Console is used for passing GTD (UUI) data to Unified ICME in a new call. (The
default is UUS.) Additionally, other parameters in the GTD can also be extracted and sent to
Unified ICME. (UUS,PRN,GCI) use comma-separated values. Any parameter contained in the
NSS IAM message can be extracted. (Refer to the ITU-T Narrowband Signaling Syntax
spec(Q.1980.1).)

Configure the SIP Service by selecting Device Management > CVP Call Server > SIP tab in
the Operations Console and make an entry for the Generic Type Descriptor (GTD) Parameter
Forwarding with the string to forward using the parameter names delimited by commas. For
example, configure the SIP Service with the string 

 to forward these three

parameters in a concatenated string to Unified ICME. The Unified ICME script needs to retrieve
the call variable on the route request message called "UsertoUserInfo," and parse out the needed
information.

Configuration and Administration Guide for Cisco Unified Customer Voice Portal Release 4.1(1)