Danke für die schnelle Antwort!
Nutze einen Gigaset SE105 Kabel/DSL-Router. Ports habe ich UDP 3478, 5000-5004, 5060, 8000, 10000-10019 offen(habe das Ding aber auch als DMZ laufen gehabt...bringt auch keien Besserung).
Firmware: 1.5.6rc14
Konfig:
wan=1
management_ip=169.254.254.254
management_mask=255.255.0.0
provision_server_address=0
provision_server_port=69
provision_group=604
provision_expires=86400
upgrade_server_address=provis.azatel.com
upgrade_server_port=69
upgrade_filename=0
bootcode_version=V1.6.7
device_mode=0
debug_level=0
default_t1=500
dscp=1
dmz=0
dmz_ip=172.25.25.0
dhcp_start=172.25.25.2
dhcp_end=172.25.25.31
dhcp_mode=auto
dhcp_df_gw=172.25.25.1
dhcp_dns=172.25.25.1
dhcp_dns2=0.0.0.0
dhcp_hostname=0
dhcp_wins=172.25.25.1
dhcp_domain=.com
dhcp_lease_time=86400
dhcp_resrv_ip=192.168.100.100
dhcp_resrv_mac=00-00-00-00-00-00
ems_server_address=0
ems_server_port=63030
ems_community=private
ems_expires=3600
factoryreset=*#26845#
lan_ip=172.25.25.1
lan_mask=255.255.255.0
lan_gateway=172.25.25.1
lan_dns1=141.44.1.1
lan_dns2=141.44.1.2
lan_proto=dhcp
mac_spoofing_enable=0
mac_spoofing_mac_address=000000000000
network_mtu_rate=1460
ntp_server_address=0
ntp_timezone=-8
ntp_expires=86400
provision_priority=1
provision_http_server_address=0
provision_http_server_port=80
provision_server_address_backup=0
pppoe_username=1234
pppoe_password=0000
pstn_switchkey=0000
port_forward_1=tcp,0.0.0.0,0
port_forward_2=tcp,0.0.0.0,0
port_forward_3=tcp,0.0.0.0,0
port_forward_4=tcp,0.0.0.0,0
port_forward_5=tcp,0.0.0.0,0
port_forward_6=tcp,0.0.0.0,0
port_forward_7=tcp,0.0.0.0,0
port_forward_8=tcp,0.0.0.0,0
port_forward_9=tcp,0.0.0.0,0
port_forward_10=tcp,0.0.0.0,0
supervisor_password=******
snmp_sendtrap=0
snmp_get=public
snmp_set=private
snmp_trap=public
snmp_target1=0.0.0.0
snmp_target2=0.0.0.0
snmp_target3=0.0.0.0
snmp_target4=0.0.0.0
snmp_port1=0
snmp_port2=0
snmp_port3=0
snmp_port4=0
syslog_server_address=0
syslog_server_port=514
user_password=12345
upgrade_http_server_address=provis.azatel.com
upgrade_http_server_port=80
upgrade_boot_filename=0
upgrade_boot_time=1
voip_protocol=1
voip_service_line0=1
voip_user_user0_username=meinUserName
voip_user_user0_password=meinPasswort
voip_user_user0_displayname=0
voip_service_line1=0
voip_user_user1_username=2222
voip_user_user1_password=0000
voip_user_user1_displayname=2222
voip_mgcp_localport=2427
voip_mgcp_callagent_address=192.168.100.100
voip_mgcp_callagent_port=2727
voip_mgcp_wildrsip=0
voip_mgcp_epid=domain.net
voip_mgcp_epidstyle=0
voip_mgcp_expires=60
voip_callfeature_enable=1
voip_callfeature_wotransfer_en1=1
voip_callfeature_hold_en1=1
voip_callfeature_wait_en1=1
voip_callfeature_wttransfer_en1=1
voip_callfeature_alertinfo_en1=0
voip_callfeature_wait_disccode1=#88
voip_callfeature_waiting_percall_deact1=*70
voip_callfeature_foraways_num1=0
voip_callfeature_foraways_en1=0
voip_callfeature_forbusy_num1=0
voip_callfeature_forbusy_en1=0
voip_callfeature_forno_num1=0
voip_callfeature_forno_en1=0
voip_callfeature_for_ringnum1=3
voip_callfeature_alertinfo_num1=0
voip_call_second_feccode1=*25
voip_callfeature_wotransfer_feccode1=*24
voip_callfeature_wtransfer_trancode1=#44
voip_callfeature_waiting_act1=*99
voip_callfeature_waiting_deact1=#99
voip_callfeature_foraways_act1=*75
voip_callfeature_foraways_deact1=#75
voip_callfeature_forbusy_act1=*76
voip_callfeature_forbusy_deact1=#76
voip_callfeature_forno_act1=*77
voip_callfeature_forno_deact1=#77
voip_callfeature_dnd_en1=0
voip_callfeature_blockclid_en1=0
voip_callfeature_blockclid_percall_act1=*67
voip_callfeature_rej_priv_en1=0
voip_callfeature_conference_en1=1
voip_callfeature_conference_code1=#92
voip_callfeature_busyredial_en1=1
voip_callfeature_busyredial_code1=#5
voip_callfeature_busyredial_repeat1=10
voip_callfeature_busyredial_stop1=60
voip_callfeature_polarity_reversal_en1=0
voip_callfeature_wotransfer_en2=1
voip_callfeature_hold_en2=1
voip_callfeature_wait_en2=1
voip_callfeature_wttransfer_en2=1
voip_callfeature_alertinfo_en2=0
voip_callfeature_wait_disccode2=#88
voip_callfeature_waiting_percall_deact2=*70
voip_callfeature_foraways_num2=0
voip_callfeature_foraways_en2=0
voip_callfeature_forbusy_num2=0
voip_callfeature_forbusy_en2=0
voip_callfeature_forno_num2=0
voip_callfeature_forno_en2=0
voip_callfeature_for_ringnum2=0
voip_callfeature_alertinfo_num2=0
voip_call_second_feccode2=*25
voip_callfeature_wotransfer_feccode2=*24
voip_callfeature_wtransfer_trancode2=#44
voip_callfeature_waiting_act2=*99
voip_callfeature_waiting_deact2=#99
voip_callfeature_foraways_act2=*75
voip_callfeature_foraways_deact2=#75
voip_callfeature_forbusy_act2=*76
voip_callfeature_forbusy_deact2=#76
voip_callfeature_forno_act2=*77
voip_callfeature_forno_deact2=#77
voip_callfeature_dnd_en2=0
voip_callfeature_blockclid_en2=0
voip_callfeature_blockclid_percall_act2=*67
voip_callfeature_rej_priv_en2=0
voip_callfeature_conference_en2=1
voip_callfeature_conference_code2=#92
voip_callfeature_busyredial_en2=1
voip_callfeature_busyredial_code2=#5
voip_callfeature_busyredial_repeat2=10
voip_callfeature_busyredial_stop2=60
voip_callfeature_polarity_reversal_en2=0
voip_sip_with_sdp=1
voip_sip_localport=5060
voip_sip_proxy_address=sipsnip.com
voip_sip_proxy_port=5060
voip_sip_registrar_address=sipsnip.com
voip_sip_registrar_port=5060
voip_sip_outbound_address=0
voip_sip_outbound_port=5065
voip_sip_expires=60
voip_sip_domain=sipsnip.com
voip_sip_subject=Call_Invite
voip_sip_proxyrequire=0
voip_sip_redundancy=0
voip_sip_authenticate=0
voip_codec_rate=20
voip_codec_prefer=2
voip_codec_vad=1
voip_rtp_port=13456
voip_rtp_qos_type=1
voip_rtp_qos_tos=16
voip_qos_dscp_media=184
voip_qos_dscp_signal=160
voip_endpoint_rxgain=0
voip_endpoint_txgain=0
voip_endpoint_ring=2000,4000
voip_endpoint_ring_dr6=2000,4000
voip_endpoint_ring_dr7=2000,4000
voip_endpoint_ring_dr8=2000,4000
voip_endpoint_ring_field=0
voip_endpoint_dialtone=1000,0,425,425
voip_endpoint_busytone=500,500,425,425
voip_endpoint_ringbacktone=2000,4000,425,425
voip_endpoint_callwaittone=300,10000,440,0
voip_endpoint_callwaittone_field=0
voip_endpoint_flash=200,800
voip_fax_t38=0
voip_fax_t38port=49170
voip_stun_nataddress=0
voip_stun_server_address=stun.sipsnip.com
voip_stun_server_port=10000
voip_stun_localport=3478
voip_stun_expires=60
voip_country=0
voip_digitmap1=0
voip_digitmap2=0
voip_nte=1
voip_info=0
voip_jitterbufMin=0
voip_jitterbufMax=150
voip_jitterbufTarget=0
vlan_tag_priority_port0=0
vlan_tag_priority_port1=0
vlan_tag_vlan_id_port0=4
vlan_tag_vlan_id_port1=4
vlan_tag_enable=0
vlan_tag_add_port0=0
vlan_tag_add_port1=0
vlan_tag_remove_port0=0
vlan_tag_remove_port1=0
vlan_tag_replace_port0=0
vlan_tag_replace_port1=0
vlan_tag_voice_priority=1
vlan_tag_voice_vlan_id=3
wan_ip=141.44.198.130
wan_mask=255.255.255.0
wan_gateway=141.44.198.200
wan_dns=192.168.100.1
wan_provisioning=1
wan_dns3=0.0.0.0