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SRTP config example for voip trunks

SRTP config example for voip  trunks

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Advisor

MGCP doesn't fit your requirements but you could use h323. You would need to configure ipSec to support the call signaling (if you want) and SRTP to support the media. Here is a Cisco write up on Media and Signaling encryption for IOS gateways:

https://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/htsecure.html

HTH.

Regards,

Bill

HTH -Bill (b) http://ucguerrilla.com (t) @ucguerrilla

Please remember to rate helpful responses and identify

View solution in original post

6 REPLIES 6
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Advisor

MGCP doesn't fit your requirements but you could use h323. You would need to configure ipSec to support the call signaling (if you want) and SRTP to support the media. Here is a Cisco write up on Media and Signaling encryption for IOS gateways:

https://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/htsecure.html

HTH.

Regards,

Bill

HTH -Bill (b) http://ucguerrilla.com (t) @ucguerrilla

Please remember to rate helpful responses and identify

View solution in original post

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if you use IPsec and you have any concern about QOS make sure to enable pre classify feature on the ipsec tunnel for QOS to make sure you keep the traffic marking and to avoid any qos issues

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Advisor

I think that the original poster is looking for information on SRTP not SRST.

HTH -Bill (b) http://ucguerrilla.com (t) @ucguerrilla

Please remember to rate helpful responses and identify

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thanks for that

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Hi All ,

I found it , here is the sample config


voice-card 1
codec complexity high
local-bypass


conf t
voice service  voip
sip 
url sip
srtp negotiate cisco
exit
exit


conf t
dial-peer voice xxx voip
srtp
srtp system
security mode encrypted
exit

regards,

Kursat

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Hi,

can i ask some question about the SRTP protocol?

1. how can i configure the SRTP protocol for bandwidth guarantee in QOS rules;

2. what is the SRTP port used?

3. what is the ios for the SRTP command in dial-peer?

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