Lua-Dialplan-Examples.md

title	Lua Dialplan Examples
pageid	16548020

Some example extensions.lua files can be found below. They demonstrate various ways to organize extensions.

Less Clutter

Instead of defining every extension inline, you can use this method to create a neater extensions.lua file. Since the extensions table and each context are both normal lua tables, you can treat them as such and build them piece by piece.

---

extensions.lua

-- this function serves as an extension function directly
function call_user(c, user)
 app.dial("SIP/" .. user, 60)
end

-- this function returns an extension function
function call_sales_queue(queue)
 return function(c, e)
 app.queue(queue)
 end
end

e = {}

e.default = {}
e.default.include = {"users", "sales"}

e.users = {}
e.users["100"] = call_user
e.users["101"] = call_user

e.sales = {}
e.sales["5000"] = call_sales_queue("sales1")
e.sales["6000"] = call_sales_queue("sales2")

extensions = e

Less Clutter v2

In this example, we use a fancy function to register extensions.

---

extensions.lua

function register(context, extension, func)
 if not extensions then
 extensions = {}
 end

 if not extensions[context] then
 extensions[context] = {}
 end

 extensions[context][extension] = func
end

function include(context, included_context)
 if not extensions then
 extensions = {}
 end

 if not extensions[context] then
 extensions[context] = {}
 end

 if not extensions[context].include then
 extensions[context].include = {}
 end

 table.insert(extensions[context].include, included_context)
end

-- this function serves as an extension function directly
function call_user(c, user)
 app.dial("SIP/" .. user, 60)
end

-- this function returns an extension function
function call_sales_queue(queue)
 return function(c, e)
 app.queue(queue)
 end
end

include("default", "users")
include("default", "sales")

register("users", "100", call_user)
register("users", "101", call_user)

register("sales", "5000", call_sales_queue("sales1"))
register("sales", "6000", call_sales_queue("sales2"))
register("sales", "7000", function()
 app.queue("sales3")
end)