SIP INFO Messages With Content-Type: Application/media_control+xml

Home » Asterisk Users » SIP INFO Messages With Content-Type: Application/media_control+xml
Asterisk Users 2 Comments

SGkgYWxsIQ0KDQpXZSBoYXZlIGEgV2ViUlRDIHVzZXItYWdlbnQgKHVzaW5nIHNpcC5qcykgdGhh dCBpcyBnaXZpbmcgbWUgaGVhZGFjaGUuDQoNCldoZW4gYSBkaWZmZXJlbnQgdXNlci1hZ2VudCBj YWxscyB0aGlzIHVzZXItYWdlbnQsIHdlIGZyZXF1ZW50bHkgc2VlIEFzdGVyaXNrIGdlbmVyYXRp bmcgU0lQIElORk8gbWVzc2FnZXMgd2l0aA0KDQpDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL21l ZGlhX2NvbnRyb2wreG1sDQpDb250ZW50LUxlbmd0aDogMTc4DQoNCjw/eG1sIHZlcnNpb249IjEu MCIgZW5jb2Rpbmc9InV0Zi04IiA/Pg0KPG1lZGlhX2NvbnRyb2w+DQogIDx2Y19wcmltaXRpdmU+
DQogICA8dG9fZW5jb2Rlcj4NCiAgICA8cGljdHVyZV9mYXN0X3VwZGF0ZS8+DQogIDwvdG9fZW5j b2Rlcj4NCjwvdmNfcHJpbWl0aXZlPg0KPC9tZWRpYV9jb250cm9sPg0KDQpJbiB0aGUgcGF5bG9h ZCwgdGhhdCBpcyBzZW50IGZyb20gQXN0ZXJpc2sgdG8gdGhlIGNhbGxlciBVQSAodGhlIFdlYlJU
QyBjbGllbnQgaXMgdGhlIGNhbGxlZSkuDQoNCldoaWxlIHRoaXMgZG9lcyBub3QgZG8gYW55IGhh cm0gdXN1YWxseSwgSSBoYXZlIG5vIGNsdWUgeWV0IHdoYXQgY2F1c2VzIEFzdGVyaXNrIHRvIGdl bmVyYXRlIHRoZXNlIElORk8gbWVzc2FnZXMuDQpJIGRvIGtub3cgd2hhdCB0aGV5IGFyZSBmb3Ig KGh0dHBzOi8vZGF0YXRyYWNrZXIuaWV0Zi5vcmcvZG9jL2h0bWwvcmZjNTE2OCksIGJ1dCBub3Qg d2h5IEFzdGVyaXNrIGlzIGdlbmVyYXRpbmcgdGhvc2Ugb3Igd2hhdCBtaWdodCBiZSB0aGUgdHJp Z2dlci4NCg0KQW55b25lIGhhdmUgYW55IGhpbnQ/DQoNClRoYW5rcyBhbmQgYmVzdCByZWdhcmRz DQoNCg0KRkxPUklBTiBGTE9JTUFJUg0KU3ltcGhvbnkgQ2xvdWQgU2VydmljZXMgKDE1NjgpDQoN
Cg=

2 thoughts on - SIP INFO Messages With Content-Type: Application/media_control+xml

  • They will occur as a result of a video client requesting a full frame, and there’s a few places in Asterisk where it will generate one in certain scenarios. Generally it comes from another client though. It can be received either using an incoming INFO request, or via RTCP through a PLI
    or FIR. If using PJSIP then the INFO request is only used for the H.264
    codec if the WebRTC option is not enabled.

  • VGhhbmtzIEpvc2ghDQoNCkkgd2FzIGFscmVhZHkgc3VzcGVjdGluZyBzb21ldGhpbmcgbGlrZSB0
    aGlzLg0KDQpGTE9SSUFOIEZMT0lNQUlSDQoNCg0KDQpWb246IGFzdGVyaXNrLXVzZXJzIDxhc3Rl cmlzay11c2Vycy1ib3VuY2VzQGxpc3RzLmRpZ2l1bS5jb20+IGltIEF1ZnRyYWcgdm9uICJKb3No dWEgQy4gQ29scCIgPGpjb2xwQHNhbmdvbWEuY29tPg0KQW50d29ydGVuIGFuOiBBc3RlcmlzayBV
    c2VycyBNYWlsaW5nIExpc3QgLSBOb24tQ29tbWVyY2lhbCBEaXNjdXNzaW9uIDxhc3Rlcmlzay11
    c2Vyc0BsaXN0cy5kaWdpdW0uY29tPg0KRGF0dW06IE1pdHR3b2NoLCAxMy4gT2t0b2JlciAyMDIx IHVtIDE1OjEyDQpBbjogQXN0ZXJpc2sgVXNlcnMgTWFpbGluZyBMaXN0IC0gTm9uLUNvbW1lcmNp YWwgRGlzY3Vzc2lvbiA8YXN0ZXJpc2stdXNlcnNAbGlzdHMuZGlnaXVtLmNvbT4NCkJldHJlZmY6
    IFtFeHRlcm5hbF0gUmU6IFthc3Rlcmlzay11c2Vyc10gU0lQIElORk8gbWVzc2FnZXMgd2l0aCBD
    b250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL21lZGlhX2NvbnRyb2wreG1sDQoNCg0KQ0FVVElPTjog VGhpcyBlbWFpbCBvcmlnaW5hdGVkIGZyb20gb3V0c2lkZSBvZiB0aGUgb3JnYW5pemF0aW9uLiBE
    byBub3QgY2xpY2sgbGlua3Mgb3Igb3BlbiBhdHRhY2htZW50cyB1bmxlc3MgeW91IHJlY29nbml6
    ZSB0aGUgc2VuZGVyIGFuZCBrbm93IHRoZSBjb250ZW50IGlzIHNhZmUuDQpPbiBXZWQsIE9jdCAx MywgMjAyMSBhdCAxMDowNSBBTSBGbG9pbWFpciBGbG9yaWFuIDxmLmZsb2ltYWlyQGNvbW1lbmQu Y29tPG1haWx0bzpmLmZsb2ltYWlyQGNvbW1lbmQuY29tPj4gd3JvdGU6DQpIaSBhbGwhDQoNCldl IGhhdmUgYSBXZWJSVEMgdXNlci1hZ2VudCAodXNpbmcgc2lwLmpzKSB0aGF0IGlzIGdpdmluZyBt ZSBoZWFkYWNoZS4NCg0KV2hlbiBhIGRpZmZlcmVudCB1c2VyLWFnZW50IGNhbGxzIHRoaXMgdXNl ci1hZ2VudCwgd2UgZnJlcXVlbnRseSBzZWUgQXN0ZXJpc2sgZ2VuZXJhdGluZyBTSVAgSU5GTyBt ZXNzYWdlcyB3aXRoDQoNCkNvbnRlbnQtVHlwZTogYXBwbGljYXRpb24vbWVkaWFfY29udHJvbCt4
    bWwNCkNvbnRlbnQtTGVuZ3RoOiAxNzgNCg0KPD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0i dXRmLTgiID8+DQo8bWVkaWFfY29udHJvbD4NCiAgPHZjX3ByaW1pdGl2ZT4NCiAgIDx0b19lbmNv ZGVyPg0KICAgIDxwaWN0dXJlX2Zhc3RfdXBkYXRlLz4NCiAgPC90b19lbmNvZGVyPg0KPC92Y19w cmltaXRpdmU+DQo8L21lZGlhX2NvbnRyb2w+DQoNCkluIHRoZSBwYXlsb2FkLCB0aGF0IGlzIHNl bnQgZnJvbSBBc3RlcmlzayB0byB0aGUgY2FsbGVyIFVBICh0aGUgV2ViUlRDIGNsaWVudCBpcyB0
    aGUgY2FsbGVlKS4NCg0KV2hpbGUgdGhpcyBkb2VzIG5vdCBkbyBhbnkgaGFybSB1c3VhbGx5LCBJ
    IGhhdmUgbm8gY2x1ZSB5ZXQgd2hhdCBjYXVzZXMgQXN0ZXJpc2sgdG8gZ2VuZXJhdGUgdGhlc2Ug SU5GTyBtZXNzYWdlcy4NCkkgZG8ga25vdyB3aGF0IHRoZXkgYXJlIGZvciAoaHR0cHM6Ly9kYXRh dHJhY2tlci5pZXRmLm9yZy9kb2MvaHRtbC9yZmM1MTY4PGh0dHBzOi8vZXVyMDEuc2FmZWxpbmtz LnByb3RlY3Rpb24ub3V0bG9vay5jb20vP3VybD1odHRwcyUzQSUyRiUyRmRhdGF0cmFja2VyLmll dGYub3JnJTJGZG9jJTJGaHRtbCUyRnJmYzUxNjgmZGF0YT0wNCU3QzAxJTdDZi5mbG9pbWFpciU0
    MGNvbW1lbmQuY29tJTdDMzQ4ZTFlNzA2NDcwNGUzMTIxOGUwOGQ5OGU0YjIxZDUlN0MxM2IxZGRi NzU2NDU0ZTdmYmU2NjMxNzE1NDg1NTlkYSU3QzAlN0MwJTdDNjM3Njk3Mjc1NjE2MDkwMzAxJTdD
    VW5rbm93biU3Q1RXRnBiR1pzYjNkOGV5SldJam9pTUM0d0xqQXdNREFpTENKUUlqb2lWMmx1TXpJ
    aUxDSkJUaUk2SWsxaGFXd2lMQ0pYVkNJNk1uMCUzRCU3QzMwMDAmc2RhdGE9YWFRRTQwOWFaU0ZM
    VzBJS3UzenN6MTg3dDVNTndEZDdxJTJGWGtaZDdtYmNrJTNEJnJlc2VydmVkPTA+KSwgYnV0IG5v dCB3aHkgQXN0ZXJpc2sgaXMgZ2VuZXJhdGluZyB0aG9zZSBvciB3aGF0IG1pZ2h0IGJlIHRoZSB0
    cmlnZ2VyLg0KDQpBbnlvbmUgaGF2ZSBhbnkgaGludD8NCg0KVGhleSB3aWxsIG9jY3VyIGFzIGEg cmVzdWx0IG9mIGEgdmlkZW8gY2xpZW50IHJlcXVlc3RpbmcgYSBmdWxsIGZyYW1lLCBhbmQgdGhl cmUncyBhIGZldyBwbGFjZXMgaW4gQXN0ZXJpc2sgd2hlcmUgaXQgd2lsbCBnZW5lcmF0ZSBvbmUg aW4gY2VydGFpbiBzY2VuYXJpb3MuIEdlbmVyYWxseSBpdCBjb21lcyBmcm9tIGFub3RoZXIgY2xp ZW50IHRob3VnaC4gSXQgY2FuIGJlIHJlY2VpdmVkIGVpdGhlciB1c2luZyBhbiBpbmNvbWluZyBJ
    TkZPIHJlcXVlc3QsIG9yIHZpYSBSVENQIHRocm91Z2ggYSBQTEkgb3IgRklSLiBJZiB1c2luZyBQ
    SlNJUCB0aGVuIHRoZSBJTkZPIHJlcXVlc3QgaXMgb25seSB1c2VkIGZvciB0aGUgSC4yNjQgY29k ZWMgaWYgdGhlIFdlYlJUQyBvcHRpb24gaXMgbm90IGVuYWJsZWQuDQoNCi0tDQpKb3NodWEgQy4g Q29scA0KQXN0ZXJpc2sgVGVjaG5pY2FsIExlYWQNClNhbmdvbWEgVGVjaG5vbG9naWVzDQpDaGVj ayB1cyBvdXQgYXQgd3d3LnNhbmdvbWEuY29tPGh0dHBzOi8vZXVyMDEuc2FmZWxpbmtzLnByb3Rl Y3Rpb24ub3V0bG9vay5jb20vP3VybD1odHRwJTNBJTJGJTJGd3d3LnNhbmdvbWEuY29tJTJGJmRh dGE9MDQlN0MwMSU3Q2YuZmxvaW1haXIlNDBjb21tZW5kLmNvbSU3QzM0OGUxZTcwNjQ3MDRlMzEy MThlMDhkOThlNGIyMWQ1JTdDMTNiMWRkYjc1NjQ1NGU3ZmJlNjYzMTcxNTQ4NTU5ZGElN0MwJTdD
    MCU3QzYzNzY5NzI3NTYxNjEwMDI5MyU3Q1Vua25vd24lN0NUV0ZwYkdac2IzZDhleUpXSWpvaU1D
    NHdMakF3TURBaUxDSlFJam9pVjJsdU16SWlMQ0pCVGlJNklrMWhhV3dpTENKWFZDSTZNbjAlM0Ql N0MzMDAwJnNkYXRhPUJiSGpRclYzdDFPQXNwenJYTHIxWWNRN2s2ZUpDZ1VVU1ZCQjQwUTRBaTAl M0QmcmVzZXJ2ZWQ9MD4gYW5kIHd3dy5hc3Rlcmlzay5vcmc8aHR0cHM6Ly9ldXIwMS5zYWZlbGlu a3MucHJvdGVjdGlvbi5vdXRsb29rLmNvbS8/dXJsPWh0dHAlM0ElMkYlMkZ3d3cuYXN0ZXJpc2su b3JnJTJGJmRhdGE9MDQlN0MwMSU3Q2YuZmxvaW1haXIlNDBjb21tZW5kLmNvbSU3QzM0OGUxZTcw NjQ3MDRlMzEyMThlMDhkOThlNGIyMWQ1JTdDMTNiMWRkYjc1NjQ1NGU3ZmJlNjYzMTcxNTQ4NTU5
    ZGElN0MwJTdDMCU3QzYzNzY5NzI3NTYxNjEwMDI5MyU3Q1Vua25vd24lN0NUV0ZwYkdac2IzZDhl eUpXSWpvaU1DNHdMakF3TURBaUxDSlFJam9pVjJsdU16SWlMQ0pCVGlJNklrMWhhV3dpTENKWFZD
    STZNbjAlM0QlN0MzMDAwJnNkYXRhPTZBTSUyQlpnJTJGTDlBMDRzWHc3bnRnVGpaTnp4eTRpWjZV
    SmxXUkw5YlR4eWhrJTNEJnJlc2VydmVkPTA+DQo