Hi,

I'm using PhonerLite64 v3.24. Invite message sent when making a call contains ssrc parameters in the SDP part. My calls are rejected by provider. I was told that it's due to incorrect format of ssrc.
Example (from PhonerLite debug):
a=ssrc:3102715358

According to RFC 5576, the ssrc format is:
a=ssrc:<ssrc-id> <attribute>
a=ssrc:<ssrc-id> <attribute>:<value>

My understanding is that the PhonerLite misses the <attribute> in the ssrc. Am I right? Is it possible to fix it?

Many thanks.

Hi,

it looks better now, but still not working. I think the problem is that the PhonerLite uses negative number as ssrc-id, see example:

a=ssrc:-1815085392 cname:test@x.x.x.x

but RFC says:
<ssrc-id> is the synchronization source (SSRC) ID of the source being described, interpreted as a 32-bit unsigned integer in network byte order and represented in decimal
ssrc-id = integer ; 0 .. 2**32 - 1

I've tried to manipulate the ssrc-id "manually" at my end and when I changed it to positive integer, my provider accepted the call.

Thanks

Hi there,

yep, now it works, provider accepts my calls 

a=ssrc:1453884725 cname:test@x.x.x.x

Thanks for your effort.

Gabriel