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[Linphone-developers] Multicast Call on iOS and Android

From: powerqian
Subject: [Linphone-developers] Multicast Call on iOS and Android
Date: Wed, 3 Jun 2015 23:24:12 -0700 (MST)

Dear Linphone developers:

Recently we want to make use of the multicast feature in liblinphone. I have
some questions related to it.

1. Based on the documentation at,
caller will set a multicast IP address, and enable multicast. Does that
means after setting the multicast IP address and enable multicast, all the
outgoing calls will send to that multicast address?

2. As for the callee side, how does he register for an IP address to receive
a multicast call? Is that the job of SIP server (e.g. Asterisks) to
multicast those INVITEs to callee?

3. Does the multicast support grouping? For example A, B, and C are in group
X, and B, C, and D are in group Y. When C make a multicast call to group Y,
only B and D will receive the call. 

Some examples is really appreciated. Thanks in advance!

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