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cRTP and SRTP issuses in VoIP network

s.risteski
Level 1
Level 1

‎12-01-2006 12:01 AM - edited ‎03-13-2019 03:50 PM

I have MPLS IP VPN network and I'm configuring VoIP service using Cisco2801 and Siemens PBXs. Basic configuration is ok, i can establish VoIP calls. I have problems with cRTP and sRTP.

When I configure cRTP or sRTP signalization is going on, telephone rings but there is no audio when I hang up.

I'm configuring cRTP on access link PE-CE, and sRTP between H.323 gateways.

I will be very grateful if somebody shares experience regarding these issues.

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b.speltz
Level 4
Level 4

‎12-07-2006 08:16 AM

With SRTP only the payload is encrypted, the headers are naked and hence can be compressed.

This URL should help you:

http://www.cisco.com/en/US/netsol/ns340/ns394/ns165/networking_solutions_white_paper0900aecd80240249.shtml

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