US 大型服务商wifi calling 所需的port和 domain(ePDG)

Wifi Calling 一般是通过IPSEC tunnels

Port 这个很简单,就是在UDP下需要打开如下端口:

UDP – port 500 (IPsec – IKE)
UDP – port 4500 (IPsec – NAT traversal)

MTU一般推荐设置为1500.

ePDG: Evolved Packet Data Gateway

ePDG其实就是一个FQDN, 很多服务商都发布了他们的ePDG. 国内一般用的比较多的是t-mobile 的wifi calling. 所以可以多关注一个t-mobile 的 ePDG

AT&T:

epdg.epc.att.net
sentitlement2.mobile.att.net
vvm.mobile.att.net
mmsc.mobile.att.net

Verizon:

wo.vzwwo.com
sg.vzwfemto.com

T-Mobile:

epdg.epc.mnc260.mcc310.pub.3gppnetwork.org
ss.epdg.epc.mnc260.mcc310.pub.3gppnetwork.org
ss.epdg.epc.geo.mnc260.mcc310.pub.3gppnetwork.org

Leave a Reply

Your email address will not be published.

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

This site uses Akismet to reduce spam. Learn how your comment data is processed.