You can configure your mobilink infinity VoIP number on Freeswitch aswell , Freeswitch is a very nice alternative to Asterisk with a SIP stack that actually works! BKW @ #freeswitch on irc.freenode.net helped me with this 
Here is the conf/sip_profiles/external/mobilink.xml settings
<include>
<gateway name=”mobimax”>
<param name=”username” value=”725xxxx”/>
<param name=”password” value=”Your_Password”/>
<param name=”proxy” value=”10.215.11.250″/>
</gateway>
</include>
Here’s the dialplan entry conf/dialplan/extensions/000_myext.xml
<include>
<extension name=”enum”>
<condition field=”destination_number” expression=”^(0300\d+)$”>
<action application=”bridge” data=”sofia/gateway/mobimax/$1″/>
</condition>
</extension>
</include>
Oh by the way , for this, make sure the SIP ALG on your outdoor cpe is turned on , while the indoor one needs to be off
Have fun!
Tags: asterisk, freeswitch, huawei, mobilink, softx3000, voip, wimax
