topic Re: Proxy Phone ASA in Network Security

Proxy Phone ASA

juand-her — Tue, 26 Mar 2019 00:44:52 GMT

If I have two or more phones using ASA Proxy Phone I could make what the traffic RTP o STP between phone1 and phone not have that go to ASA Proxy? this is for reduce the traffic in the WAN Connection between Phone1 or Phone2 with the ASA.

CCM <-> (ASA Proxy) <-> (Phone1 and Phone2)

Thanks you,

JJ hernandez.

Re: Proxy Phone ASA

Jennifer Halim — Mon, 05 Jul 2010 09:11:32 GMT

For all phone proxy calls, the RTP needs to go through the ASA because it will be using the MTA address configured on the ASA to proxy the RTP stream.

Re: Proxy Phone ASA

juand-her — Mon, 05 Jul 2010 14:02:30 GMT

halijenn wrote:

For all phone proxy calls, the RTP needs to go through the ASA because it will be using the MTA address configured on the ASA to proxy the RTP stream.

Thanks you for the information. do you know any other option that I can make in this?

Thanks you,

JJ Hernández G.

Re: Proxy Phone ASA

Jennifer Halim — Tue, 06 Jul 2010 10:29:34 GMT

Unfortunately not in the phone proxy solution as ASA phone proxy function is to proxy the call for both signaling and RTP to ensure that signalling and RTP is encrypted on the internet, and the ASA is the device that handles those proxy communication.

Re: Proxy Phone ASA

lusandi — Wed, 13 Jul 2011 18:04:49 GMT

From the ASA point of view, there is no workaround, but in order to decrease the network utilization on the phones/ASA bandwidth you can actually configure the region on the phones to use g.729 on the call manager, making the phones to use less bandwidth when they connect the audio streams.

I hope this will be helpful.

Regards,

Luis Sandi