Hi Joegen,
Just now found out,if Require SRTP is disabled,Both the scenario is
working but the call will not contain SRTP part...either way from 200 or 201
Regards,
Kumaran T
Joegen Baclor wrote:
> If you set on Offer SRTP and not Require SRTP, does scenario 1 and 3 work?
>
> On 06/16/2011 02:23 PM, Kumaran wrote:
>> Hi All,
>> I'm testing SRTP for 4.4 in the 13th June build.George had
>> attached a new Polycom file " phone.xml and phone.properties in Jira
>> (XX-9675) <http://track.sipfoundry.org/browse/XX-9675>which I have
>> replaced these files in /etc/sipxpbx/polycom..After replacing I
>> enabled the following option Enable SRTP
>> Offer SRTP
>> Require SRTP
>> AES_CM_128_HMAC_SHA1_32 for phones to enable SRTP function..Then
>> after enabling STRP in one phone I'm finding 2 different
>> scenario(1&3)....
>>
>> Scenario:
>> 2 users 200 and 201
>> 200=Polycom 550 =0004f21ed193
>> 201=Polycom 550= 0004f21ebe81
>> I tested in following Order.So I if any trying maintain the same order
>> Scenario:1 1.200 user -Polycom 550 -SRTP Enabled
>> 2.201 user -Polycom 550 -No SRTP Enabled
>> 3.Call 201 from 200 --Call is going to user 201.SRTP is working
>> Fine...Lock symbol is present in both the phone and
>> AES_CM_128_HMAC_SHA1_32 line is present in the SDP part
>> 4.Call 200 from 201----Call going to IVR(Owner of the EXT 200 is
>> not available)
>> Scenario:2
>> 1.200 user -Polycom 550-SRTP Enabled
>> 2.201 user -Polycom 550-SRTP Enabled
>> 3.Call 201 from 200 --Call is going to user 201.SRTP is working
>> Fine...Lock symbol is present in both the phone and
>> AES_CM_128_HMAC_SHA1_32 line is present in the SDP part
>> 4.Call 200 from 201--Call is going to user 200.SRTP is working
>> Fine...Lock symbol is present in both the phone and
>> AES_CM_128_HMAC_SHA1_32 line is present in the SDP part
>> Scenario:3
>> 1.200 user -Polycom 550 -SRTP Enabled
>> 2.201 user -Polycom 550 -No SRTP Enabled
>> 3.Call either way from 200 to 201 or 201 to 200 ---Call is going
>> to IVR.
>>
>> I had attached MAC-sipx-sip.cfg for above three scenario.There is
>> difference in MAC-sipx-sip.cfg for first and third scenario for 201
>> user phone(which having same setting for both the scenario)in SRTP
>> part.The same behavior is seen to other user also if we try in above
>> order...
>>
>> Regards,
>> Venkateshwaran T
>>
>>
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