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will
Junior
Joined: February 07 2005
Location: Canada
Posts: 48
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| Posted: June 17 2005 at 7:14pm | IP Logged
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Dear support,
If the ring tone is a built-in of the engine, is it possible to adjust(increase or decrease) the ring tone volume when dialing out and receiving an incoming call?
And does the engine use the MFC multimedia APIs to control the volume when the ring tone is played?
We noticed there is api SetPhoneLineVolume to adjust the volume of the phone line, is there a similar api that can be used to adjust the ring tone volume?
regards,
will
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support
Administrator
Joined: January 26 2005
Location: United States
Posts: 1666
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| Posted: June 20 2005 at 8:37am | IP Logged
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Hi Will,
At the present time, incoming phone call ring tone and outgoing phone call ring tone are internally fixed in amplitude (volume).
You>>>
And does the engine use the MFC multimedia APIs to control the volume when the ring
tone is played?
Yes, exactly… well sort of:
On a Windows platform, these internal telephony sounds are played back using the 32 bit Windows multimedia APIs. For more info regarding the Windows Multimedia API, see any copy of the Microsoft Platform SDK - Windows Multimedia section. These Win32 multimedia APIs do not rely on or require MFC.
You>>>
We noticed there is api SetPhoneLineVolume to adjust the volume of the phone line, is there a similar api that can be used to adjust the ring tone volume?
At this time (version 5.1x), there are no VOIP Media Engine APIs that allow changing the volume of the outgoing or incoming phone ring tones.
If you want to change the volume of these ring sounds programmatically within your application, you will have to use the Windows multimedia mixer API to modify the host machine’s “Wave” playback level.
Your request to change internal telephony sound volume would be a good enhancement to the VOIP Media Engine. We will log an engineering change notice to our development team and see if we can include this capability in the next release.
Repost as necessary,
LanScape Support
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LanScape Support Forum -> LanScape VOIP Media Engine™ - Technical Support
Topic: is it possible to adjust the volume of the ring tone
