The TAG unique identifier is being changed and this only happens through
VZ LTE networks, not wired networks or even other cellular data networks
(Sprint, ATT, T-Mobile)
Their phones are IPV6 so the packets are getting converted to IPV4 so it
is either happening there or there is a global ALG in Verizon land that
is doing it .
For positive proof I would need Verizon to fess up (LOL) but that will
not happen or sniff traffic from the cellphone itself.
On 9/22/2015 3:51 PM, Christopher Morrow wrote:
On Tue, Sep 22, 2015 at 12:22 PM, Christopher Morrow
<morrowc.li...@gmail.com> wrote:
On Tue, Sep 22, 2015 at 12:03 PM, Mark Stevens <mana...@monmouth.com> wrote:
Hi All,
Has anyone seen that something (most likely an alg) on Verizon's LTE/4G
network is rewriting SIP headers,in particular From Tag identifiers? We
cannot make a SIP call from our cellphones (using cellular data) beyond 30
seconds because the TAGs are rewritten and the destination Asterisk server
drops the call because of this.
I'm shocked that the cellular carrier is making over-the-top phone
calls non-functional. I'm sure they'll agree to meet you at their CO
so you can do the proper work request sometime between 6am and 7pm in
2 weeks time.
joking aside, are you sure the packets get mangledin VZW and not
elsewhere along the path? how would you be able to prove it?
go incombancy!
Thanks
Mark
