网络工程 - 通话在美国手机上显示为被阻止或受限 - 吾爱随笔录

在美国拨打电话时，有时我们的公司号码会显示为被阻止或受限。

我们的拓扑是

CUCM 9.1 <-> 2921 VG 15.2(4) <-> T1 PRI

我们的电信公司建议确保我们已将参数分配给我们的 PBX：

为了将呼叫者 ID 号码传送给小区运营商，需要在您的 PBX 中设置这 3 个呼叫参数。有时它可能在没有这些参数的情况下工作，但保证 CID 号码传送到小区的唯一方法是如果 PBX 填充了这 3 个参数。

Nature of address indicator ANSI: Unique national (significant) number
Numbering plan indicator: ISDN (Telephony) numbering plan (Recommendation E.164)
Screening indicator: Reserved for ‘User Provided, Passed Network Screening’





These are your current settings in your PBX.

Calling party number parameter
Parameter name 10 Calling party number
Length indicator 7 $07
Odd even indicator 0 even
Nature of address indicator                            0
Spare 0 –
Numbering plan indicator                               0
Address presentation restricted indicator 0 presentation allowed
Screening indicator 1                                      user provided, screening passed
Address signals 618615098

调试 isdn Q.931

    375718: Dec 21 17:53:09.016: %IPPHONE-6-REGISTER_NEW: ephone-29:SEP2C3F38C838FF IP:10.1.102.11 Socket:15 DeviceType:Phone has registered.
375719: Dec 21 12:53:52.068: ISDN Se0/0/0:23 Q931: TX -> SETUP pd = 8 callref = 0x0B53
Bearer Capability i = 0x8090A2
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98381
Exclusive, Channel 1
Calling Party Number i = 0x0081, '6176140715'
Plan:Unknown, Type:Unknown
Called Party Number i = 0x80, '17816084388'
Plan:Unknown, Type:Unknown
375720: Dec 21 12:53:52.392: ISDN Se0/0/0:23 Q931: RX <- CALL_PROC pd = 8 callref = 0x8B53
Channel ID i = 0xA98381
Exclusive, Channel 1
375721: Dec 21 12:53:53.360: ISDN Se0/0/0:23 Q931: RX <- ALERTING pd = 8 callref = 0x8B53
Progress Ind i = 0x8488 - In-band info or appropriate now available
375722: Dec 21 12:54:22.529: ISDN Se0/0/0:23 Q931: TX -> DISCONNECT pd = 8 callref = 0x0B53
Cause i = 0x8090 - Normal call clearing
375723: Dec 21 12:54:22.577: ISDN Se0/0/0:23 Q931: RX <- RELEASE pd = 8 callref = 0x8B53
375724: Dec 21 12:54:22.597: ISDN Se0/0/0:23 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x0B53
375725: Dec 21 17:55:49.661: %IPPHONE-6-UNREGISTER_NORMAL: ephone-29:SEP2C3F38C838FF IP:10.1.102.11 Socket:15 DeviceType:Phone has unregistered normally.

网关配置为 MGCP

config

interface Serial0/0/0:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
isdn map address ^011 plan unknown type unknown
isdn bind-l3 ccm-manager
no cdp enable

ccm-manager fallback-mgcp 
ccm-manager mgcp
no ccm-manager fax protocol cisco
ccm-manager music-on-hold
ccm-manager config server 10.10.10.10
ccm-manager config
!

mgcp
mgcp call-agent 10.10.10.10 2427 service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp package-capability rtp-package
mgcp package-capability sst-package
mgcp package-capability pre-package
mgcp default-package fxr-package
no mgcp package-capability res-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp rtp payload-type g726r16 static
mgcp bind control source-interface GigabitEthernet0/0
mgcp bind media source-interface GigabitEthernet0/0