Asterisk 错误[12799]netsock2.c:getaddrinfo（"；ims.ntc.net.np"；，"；（null）"；，…）：名称或服务未知，如何解决此问题？

我正在尝试配置NTC SIP线路中继配置，但出现“错误[12799]netsock2.c:getaddrinfo（“ims.NTC.net.np”，“（null）”，…）：名称或服务未知”错误。电信表示，我们的sip请求没有到达那里，我如何解决这个问题

[2020-07-24 07:59:05] ERROR[12799] netsock2.c: getaddrinfo("ims.ntc.net.np", "(null)", ...): Name or service not known
[2020-07-24 07:59:05] WARNING[12799] acl.c: Unable to lookup 'ims.ntc.net.np'
[2020-07-24 07:59:05] WARNING[12799] acl.c: Cannot connect to (null): Invalid argument
[2020-07-24 07:59:05] WARNING[12799] chan_sip.c: sip_xmit of 0x7f93981e0960 (len 433) to (null) returned -1: Invalid argument
[2020-07-24 07:59:05] NOTICE[12799] chan_sip.c: -- Registration for '+97723597002@ims.ntc.net.np' timed out, trying again (Attempt #14)
[2020-07-24 07:59:05] WARNING[12799] chan_sip.c: Retransmission timeout reached on transmission 63c184f060c6ddd85c43e1b75b3aec3f@127.0.0.1 for seqno 114 (Critical Request) -- See https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions
Packet timed out after 60031ms with no response
[2020-07-24 07:59:06] WARNING[12799] chan_sip.c: sip_xmit of 0x7f93981e0960 (len 433) to (null) returned -1: Invalid argument
[2020-07-24 07:59:07] WARNING[12799] chan_sip.c: sip_xmit of 0x7f93981e0960 (len 433) to (null) returned -1: Invalid argument
[2020-07-24 07:59:09] WARNING[12799] chan_sip.c: sip_xmit of 0x7f93981e0960 (len 433) to (null) returned -1: Invalid argument
[2020-07-24 07:59:13] WARNING[12799] chan_sip.c: sip_xmit of 0x7f93981e0960 (len 433) to (null) returned -1: Invalid argument
[2020-07-24 07:59:17] WARNING[12799] chan_sip.c: sip_xmit of 0x7f93981e0960 (len 433) to (null) returned -1: Invalid argument
[2020-07-24 07:59:21] WARNING[12799] chan_sip.c: sip_xmit of 0x7f93981e0960 (len 433) to (null) returned -1: Invalid argument
[2020-07-24 07:59:25] WARNING[12799] chan_sip.c: sip_xmit of 0x7f93981e0960 (len 433) to (null) returned -1: Invalid argument
[2020-07-24 08:00:05] ERROR[12799] netsock2.c: getaddrinfo("ims.ntc.net.np", "(null)", ...): Name or service not known

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您正在使用主机名“ims.ntc.net.np”，并且该dns名称无效

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检查名称或确保dns正常工作。

这是一个dns故障

如果您在任何中继配置中使用此DNS，这就是问题的根源，请直接使用和IP映射，您将不会再有错误

但是如果主干使用IP，我建议您映射此域。提供者可以在请求中使用内部域，这可能导致错误

检查是否没有防火墙阻止通信