On Wed, Sep 18, 2013 at 3:25 AM, I put the Who? in Mishehu <mishehu@freeswitch.org> wrote:

Just to elaborate on what Chris was recommending: He was suggesting that you run OpenSIPS as a SIP proxy between FreeSWITCH and your carrier. And yes, I do believe that OpenSIPS has the ability to modify/remove the ptime attribute. I too am puzzled as to why they would ask for it to be removed, it's kind of important to negotiation... But then again, I've had carriers tell me to reformat my Contact: headers so that they're e164 format (mod_sofia@IP:PORT anybody?)...

-Yossi

On 09/17/2013 01:18 PM, Christopher Rienzo wrote:
opensips should be able to hack up the SDP before you send it to the carrier
On Tue, Sep 17, 2013 at 1:37 PM, Cal Leeming [Simplicity Media Ltd] <cal.leeming@simplicitymedialtd.co.uk> wrote:
Ask your carrier for the exact reason behind why he wants to remove it.

I'd be curious to hear what they say..

Cal
On Tue, Sep 17, 2013 at 6:26 PM, Ashou Han <ashou@mobile-sphere.com> wrote:
One of our carriers ask us to remove this attribute for calls to them, I do not understand that either.

On 9/17/2013 1:19 PM, Michael Jerris wrote:
There isn't another way other than hacking at the sdp. Why would you want to remove it?

On Sep 17, 2013, at 12:39 PM, Cal Leeming [Simplicity Media Ltd] <cal.leeming@simplicitymedialtd.co.uk> wrote:

Had a look through google/wiki but cannot find anything relating to removing 'ptime' from the SDP.

There is a few sections on rewriting SDP, but not sure if this would work as expected;

http://wiki.freeswitch.org/wiki/Codec_Negotiation#Rewriting_SDP

http://wiki.freeswitch.org/wiki/Codec_Negotiation#Modifying_the_codec_when_using_proxy_media_mode

Perhaps give those a try and see how you get on - in the mean time maybe someone else might reply with a better answer.

Cal

On Tue, Sep 17, 2013 at 4:22 PM, Ashou Han <ashou@mobile-sphere.com> wrote:

Hi,

How to set the FreeSwitch to NOT send the ptime attribute in SDP part,
that is the

a=ptime:20

not show up in the SDP message.

Thanks,
Ashou Han
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