29 Jun
2021
29 Jun
'21
3:50 p.m.
Hello, for a german SIP provider, I need to send the contact header in the Register request the following way: Contact: <sip:012345678@xx.yy.zz.aa:5080> with 012345678 as the registered SIP trunk number Today we send: Contact: <sip:gw+dtst@xx.yy.zz.aa:5080;transport=udp;gw=dtst> which is not accepted by them. The reason is: They filter SIP packets by their phone numbers in the contact header for security reasons. So my question is: Is there a way to set the desired behaviour in the Register request: Contact: <sip:012345678@xx.yy.zz.aa:5080> -- With kind regards Peter Steinbach Telefaks Services GmbH mailto:lists (att) telefaks.de Internet: www.telefaks.de