Can I Modify SDP Attributes for Symmetric RTP?

soylo · Post by **soylo** » Tue Feb 26, 2008 3:16 am

1. Brekeke Product Name and version: Ondo SIP 2.1.6.6

2. Java version: %x

3. OS type and the version: 2003

4. UA (phone), gateway or other hardware/software involved: linskys PAP2

5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/ ... terns.html : Pattern 9

6. Your problem:

Can I configure over Ondo SIP the SDP Attributes?
Because, I want set up a:direction:active in SDP to support Symmetric RTP.

UA----- NAT Symmetric --------Ondo SIP ------ Gateway PSTN

Note: Ondo SIP no RTP Relay.

thanks

Laurie · Post by **Laurie** » Tue Feb 26, 2008 11:59 am

I think you need to create a plug-in..

voipwell.com · Post by **voipwell.com** » Wed Feb 27, 2008 9:25 am

If your router supports upnp, Brekeke's new version can use that for nat traversal and port forwarding. Awesome feature.

soylo · Post by **soylo** » Wed Feb 27, 2008 9:35 pm

Ondo SIP is out in Internet, Linksys PAP2T is behind of NAT SYMMETRIC and gateway PSTN is out Internet.

I don't want rtp relay on ONdo SIP, I want the Media go from PAP2T to Gateway VOIP, so I have to modify SDP a=direction:active

Laurie · Post by **Laurie** » Thu Feb 28, 2008 11:07 am

I think DialPlan can not modify SDP part..
Ask brekeke to include the feature you want to have.

voipwell.com · Post by **voipwell.com** » Sun Mar 02, 2008 3:16 pm

2.1.5.1 (September 21, 2007)
- Advanced Edition was added to the Product Line
(The Edition Comparison is at http://www.brekeke.com/products/products_sip_2.php)
- Added ability to modify SDP's addresses using the DialPlan
- Fixed minor bugs