Run Macro That Applies To Other Macros

So I have a macro that sends an email of the active spread sheet. I want to add that macro to another macro. The tricky part is that i call other macros inside the macro. So is there a way i can add the send email macro and have it apply to all the macros i call. Here my code:

Code:
Sub Run_All_Billing()
'
' Run_All_Phones Macro
' Make sure you open "gateway.csv" "phone.csv" "ctiroutepoint.csv" and "Billing Contact.xls"
' Call Gateway Workbook and clean it up

Windows("gateway.csv").Activate
Call Clean_Up_Gateway

' Call Phone Workbook and clean it up

[Code] .........

Here's my send email Macro

Code:

Sub Send_Email()
'
' Send_Email Macro
'
Dim oApp, oMail As Object
Dim WB As Workbook
Dim ArchiveFolder As String, FileName As String

[Code] ........

So I want to add that send email macro into my Run all billing macro and it apply to all the macros I call.