How to connect Skype to 3CX - [Part 2]
How the multichannel 3CX to Skype trunk works
First, you install Skype client on PC. Then you create some Windows users. Under each user you will start individual Skype instance with its own Skype account. You must use different Windows users, because of inability to start several Skype instances under the same Windows user. After that you create several VoIP trunks in 3CX (equal to number of Skype accounts you plan to use). But how to connect these trunks to Skype instances? For this purpose an addition to SipTheeSkype was developed. It called stsTrunkBuilder. This is a set of scripts and command files that installs into the same folder where SipTheeSkype was placed. It uses data from stsTrunkDef.cfg (you add data to it) to generate the new set of command files (bat) and configuration files (cfg) for each SipTheeSkype trunk (channel). Each of the generated bat files start its own Skype instance under individual Windows user, and its own SipTheeSkype, using individual configuration file cfg for that trunk. So every bat file start its own complete SipTheeSkype trunk. Note that every trunk use its own SIP port for communications starting from port 5070 (5070, 5071, 5072 and so on). You may create as many trunks as you want. This is limited only by your hardware capacity. The author of SipTheeSkype has tested 20 trunks on standard P4 machine. Creating multichannel trunk 1. Download and unzip stsTrunkBuilder in the C:\ststrunkbuilder 2. Copy content of C:\ststrunkbuilder (with subfolders) to the SipTheeSkype folder. In Part 1 it was C:\siptheeskype. Copy content of C:\ststrunkbuilder\samples to C:\siptheeskype also. Now we don't need C:\ststrunkbuilder folder anymore. 3. Open in Notepad C:\siptheeskype\stsTrunkDef.cfg file and change it as follows: skypeUserList=first_Skype_account, second_Skype_account..., N_Skype_account - I created these example accounts: skype_3cx_trunk_1, skype_3cx_trunk_2, skype_3cx_trunk_3. targetPlatform=windows - We are using stsTrunkBuilder on Windows platform stsBaseConfigFile=/siptheeskype/siptheeskype.cfg - Name of the folder were the main SipTheeSkype configuration file, siptheeskype.cfg, be found. We created it in Part1. passwordSeed=makeupsomethinghere Do not change! Password(s) for SipTheeSkype trunks that you creating (Authentication Password in 3CX) will be generated automatically. Then we simply will copy it to the Add VoIP provider wizard in 3CX. trunkNameBase=stsTrunk_ Username mask (Authentication ID in 3CX) of the trunk. Then we will simply copy them to the Add VoIP provider wizard in 3CX. You can change it, but you do not have to. I have not changed it. osUserBase=stsTrunk_ Windows username mask. You can change it, but you do not have to. I have not changed it. Important! If your do not change it, the users that you will create in Windows must have these names: stsTrunk_01, stsTrunk_02...  Save and close stsTrunkDef.cfg 4. Create as many Windows users as Skype "lines" you plan to use.Important! The usernames for these users must be exactly same as usernames generated in Step 3. Also important that all users will have passwords (no blank passwords!), or stsTrunkBuilderscripts will produce errors. 5. Run C:\siptheeskype\trunkConfig_win.bat file. A group of files for each trunk (each Skype account you listed in skypeUserList in step 3) will be created in the C:\siptheeskype folder. For example for first trunk these files are: stsTrunk_01_start.bat - trunk start stsTrunk_01_stop.bat - trunk stop stsTrunk_01.cfg - trunk settings (based on siptheeskype.cfg, we created in Part 1) stsTrunk_01_log.properties - trunk logging settings. Mainly we will use the start and stop files. 6. Create required number of 3CX VoIP Providers as explained in Part 1 Important! When you are creating providers, use for SIP Server port, Authentication ID and Authentication Password corresponding values from corresponding SipTheeSkype trunk settings. For example, to take these values for third 3CX trunk (VoIP provider), open in Notepad stsTrunk_03.cfg file and search for strings host_port, username and passwd. Copy and paste these values into the 3CX Add VoIP Provider Wizard.  7. Using generated start command files (stsTrunk_01_start.bat, stsTrunk_02_start.bat...) start SipTheeSkype trunks in turn. The startup process will ask for user password for respective user and start SipTheeSkype and Skype under that user's profile. The script will save user password in the user profile so you will not need to enter it next time. For each Skype instance allow access for java.exe ans set Speed Dial Numbers as described in Part 1.  8. To start all the trunks simultaneously use stsTrunkStartAll_win.bat. To stop the trunks use corresponding files with stop string. Using multichannel trunk The multichannel trunk we created working as "hunt group". The inbound calls from Skype network goes to the first (main) Skype account. If this account is "busy", the SipTheeSkype software will switchover this call to next Skype account until it found the "free" account. If there are no more free accounts, the Skype network caller will receive "busy" tone.  From 3CX (SIP) side the system works also as "hunt group" but the switchover made by 3CX Outbound rules. The Outbound rule tries to take the first Skype trunk (Route 1). If it is "busy", it will try to take the second trunk (Route 2) and so on. Therefore if you have no more than three trunks, you have to configure only the first Outbound rule (for first 3CX - Skype trunk). Thats all.  If your have more than three trunks, I would recommend to configure routes in Outbound rules as follows:
 Conclusion To start all your trunks automatically after the server startup, simply create New task in Windows Scheduler that run stsTrunkStartAll_win.bat file at computer startup. Screenshot for Russian Windows, but you understood me.  Also you can add the Call Me! button with you first (main) Skype account to your Website. http://www.skype.com/intl/en/share/buttons/ Now you can install Skype at your client's PCs, at your smartphones, at any other Skype enabled gadgets and receive and place calls to them! Related Articles How to connect Skype to 3CX [Part 1]Configuring Sip to Skype gateway - 3CX Gateway for Skype [Part 1]Configuring Sip to Skype gateway - 3CX Gateway for Skype [Part 2] |
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