Maemo Wiki Mirror - User contributions [en]

User:Magick777

2010-09-15T17:39:05Z

92.238.56.21: /* Works in progress */

Welcome to my user page on the Maemo wiki. I've just jumped on the N900 bandwagon, I'm new to Maemo but have 10+ years experience with Debian on the desktop. I'll be using this page to document those aspects of my personal setup that don't merit a Wiki page in their own right, but may be of interest to a select few, and will also attempt to improve the Wiki in general when I have relevant content.

== Works in progress ==

* [[Migrating to N900 from Series 60]]
* [[Backing up N900 to a Linux PC]]
* [[Dial via SIP]]
* Additions to [[N900 Accessories]]

== My personal pages ==

Pages in this section may be in beta or may not be sufficiently noteworthy to justify linking into the wider Wiki, but if it's N900 or Maemo related, it probably ends up in here.

*[[User:Magick777/My_N900_Changelog|My N900 Changelog]]
*[[User:Magick777/My_N900_Scheduling|My N900 Scheduling]]

*[[User:Magick777/Opportunistic_Power_Saving]]

Least cost routing

2010-09-14T20:37:35Z

92.238.56.21: /* Objective 1: pre-dialing */

This page is a work in progress; it documents my efforts to hack up some sort of script-based Least Cost Routing arrangement on my N900.

== Objective 1: pre-dialing ==

The first step is to get this working for regular PSTN access numbers over the GSM channel, so that I can use inclusive minutes rather than get charged through the nose for calling 0845, 0870 and suchlike.

In order to do that, I need to:

# intercept an outgoing GSM call, check dial string and see if we need to intervene
# if so, end the call, rewrite the number to suit, and autoredial before I the end user know or care about it

Looking at D-BUS, when we place a call via GSM we get:

=================================
Arg 1: :1.20
Arg 2: null
Arg 3: com.nokia.csd.Call
Arg 4: CreateRequested
Arg 5: +442081802828
=================================
Arg 1: :1.20
Arg 2: null
Arg 3: com.nokia.csd.Call
Arg 4: Created
Arg 5: +442081802828
=================================

so, we can hook a script onto that using the following in dbus-scripts-settings

#:GSM Call Requested
/opt/usr/bin/lcr * * com.nokia.csd.Call CreateRequested *

now, let's test that we can forcibly end the call before it happens:

#!/bin/sh
echo "Least Cost Routing script: detected outgoing call to $5";
echo "Ending call to $5"
dbus-send --system --print-reply --dest=com.nokia.csd.Call /com/nokia/csd/call com.nokia.csd.Call.Release

Least cost routing

2010-09-14T20:34:44Z

92.238.56.21: /* Objective 1: pre-dialing */

Least cost routing

2010-09-14T20:24:19Z

92.238.56.21:

Least cost routing

2010-09-14T20:16:58Z

92.238.56.21: New page: This page is a work in progress; it documents my efforts to hack up some sort of script-based Least Cost Routing arrangement on my N900. The first step is to get this working for regular...

This page is a work in progress; it documents my efforts to hack up some sort of script-based Least Cost Routing arrangement on my N900.

The first step is to get this working for regular PSTN access numbers over the GSM channel, so that I can use inclusive minutes rather than get charged through the nose for calling 0845, 0870 and suchlike.

In order to do that, I need to:

# intercept outgoing call, check dial string and see if we need to intervene
# if so, end the call, edit the number to suit and autoredial before I the user know or care about it