In this section:
The Legacy Mobile Station Domain (LMSD) or 3GPP2 defines the Session Initiation Protocol (SIP) inter-working with CDMA network for IP based trunking between CDMA Mobile Switching Centers (MSC) to enable Transcoder Free Operations (TrFO). When SBC is not configured with tone profiles, inter-working of calls are accomplished by additional configurations. For more information on LMSD interworking, refer to _Key Features.
Configuring on EMA
To configure LMSD interworking without tones on the EMA:
Log on to the EMS SWe GUI. The following screen appears:
EMS GUI Home Page
On the navigation pane, select Element Management > SBX Manager.
Select the registered SBC manager to configure.
Select All > Address Context > Zone > SIP Trunk Group >Signaling.
The Signaling page appears:Signaling
- Enable Stop Lmsd Tone On Update.
- Click Save.
Configuring on PSX
To configure LMSD interworking without tones on the PSX Manager:
Log on to the EMS SWe GUI. The following screen appears:
EMS GUI Home Page
On the navigation pane, select Element Management > PSX Manager.
Select the registered Master PSX.
The PSX Manager screen appears.- Select the IP Signaling Profile from the Entity drop-down menu.
The IP Signaling Profiles are listed. Select the Default_LMSD profile.
On bottom-left corner of the screen, click New to create a new profile and enter a name for IP Signaling Profile.
IP Signaling Profile
- Select Accept Alert Info check box.
- Click Save.
Overview
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