ok....will throw in an idea for you to consider.

first off...the script you posted above will not work...you need to test this before you post.

I leave you to sort that..

second you fail to provide data for all columns

third...your sample of dates (days) is only two dates....???

anyways, based on what I think you need here is some code to play with

--===== If the test table already exists, drop it

IF OBJECT_ID('TempDB..History','U') IS NOT NULL

DROP TABLE History

--===== Create the test table with

CREATE TABLE History

(

[HistoryID] [int] IDENTITY(1,1) NOT FOR REPLICATION NOT NULL,

[SystemID] [tinyint] NULL,

[PID] [int] NULL,

[Name] [varchar](35) NOT NULL,

[Source] [varchar](32) NULL,

[SourceField] [varchar](32) NULL,

[SourceID] [varchar](32) NULL,

[CallDateTime] [datetime] NULL,

[Num] [varchar](15) NULL,

[CallData] [varchar](240) NULL,

[ANI] [varchar](15) NULL,

[RC] [varchar](10) NULL,

[ID] [int] NULL,

)

--===== Insert the test data into the test table

INSERT INTO History

(ID, Name, CallDateTime, RC, Num)

SELECT '26241','Carr_CHS_20120227','Feb 27 2012 2:07PM','Called','01912' UNION ALL

SELECT '26263','Carr_CHS_20120227','Feb 27 2012 2:10PM','Called','01443' UNION ALL

SELECT '39395','Carr_CMM_20120227','Feb 27 2012 2:14PM','Called','01513' UNION ALL

SELECT '27237','Carr_CHS_20120227','Feb 27 2012 4:14PM','Called','01519' UNION ALL

SELECT '27254','Carr_CHS_20120227','Feb 27 2012 4:16PM','Called','01270' UNION ALL

SELECT '27440','Carr_CHS_20120227','Feb 27 2012 4:34PM','Called','01938' UNION ALL

SELECT '40522','Carr_CMM_20120227','Feb 27 2012 4:48PM','Called','01924' UNION ALL

SELECT '40528','Carr_CMM_20120227','Feb 27 2012 4:48PM','Called','01875' UNION ALL

SELECT '40595','Carr_CMM_20120227','Feb 27 2012 4:58PM','Called','34849' UNION ALL

SELECT '27712','Carr_CHS_20120227','Feb 27 2012 5:03PM','Called','30476' UNION ALL

SELECT '40654','Carr_CMM_20120227','Feb 27 2012 5:08PM','Called','82228' UNION ALL

SELECT '40664','Carr_CMM_20120227','Feb 27 2012 5:09PM','Called','13048' UNION ALL

SELECT '40677','Carr_CMM_20120227','Feb 27 2012 5:11PM','Called','81410' UNION ALL

SELECT '40740','Carr_CMM_20120227','Feb 27 2012 5:19PM','Called','52379' UNION ALL

SELECT '28262','Carr_CHS_20120227','Feb 27 2012 6:17PM','Called','01612' UNION ALL

SELECT '28263','Carr_CHS_20120227','Feb 27 2012 6:17PM','Called','0148227' UNION ALL

SELECT '41207','Carr_CMM_20120227','Feb 27 2012 6:47PM','Called','02891209' UNION ALL

SELECT '28654','Carr_CHS_20120227','Feb 27 2012 7:00PM','Called','014240' UNION ALL

SELECT '41393','Carr_CMM_20120227','Feb 27 2012 7:07PM','Called','01642198' UNION ALL

SELECT '30313','Carr_CHS_20120227','Feb 28 2012 12:36PM','Called','01142478'

SELECT HistoryID, SystemID, PID, Name, Source, SourceField, SourceID, CallDateTime, Num, CallData, ANI, RC, ID

FROM History

ORDER BY Name, CallDateTime

;

with CTE as

(

SELECT ID, Name, CallDateTime, Num, RC, row_number() over(PARTITION BY [Name] order by calldatetime ) as rn

FROM History

WHERE (CallDateTime > CONVERT(DATETIME, '2012-02-27 16:48:00.000', 102)) AND (rc = 'Called')

)

SELECT firstcall.ID

, firstcall.Name

, firstcall.CallDateTime

, firstcall.Num

, firstcall.RC

, nextcall.CallDateTime AS NextCallDateTime

, datediff(d,firstcall.CallDateTime,nextcall.CallDateTime) as numberofdays

FROM

cte AS firstcall INNER JOIN cte AS nextcall

ON firstcall.Name = nextcall.Name

WHERE (firstcall.rn = 1)

AND (nextcall.rn = 2);