Hi, I have configured Dlink DP-150S IP PHONE using SIP protocol and all is working fine. Only issue i am having is Randomly IP Phones start sending missed calls (two rings) to each other many times in a day  then stops and starts again with another number.   See following configuration done on Cisco Router.   voice service voip allow-connections h323 to h323 allow-connections h323 to sip allow-connections sip to h323 allow-connections sip to sip sip registrar server ! ! voice register global mode cme source-address 10.10.10.1 port 5060 max-dn 30 max-pool 30 tftp-path flash: create profile sync 0000552354014751 ! voice register dn 1 number 101 allow watch name Apt-1 label Apt-1 ! voice register dn 2 number 102 allow watch name Apt-2 label Apt-2 ! voice register dn 3 number 103 allow watch name Apt-3 label Apt-3 ! voice register dn 4 number 104 allow watch name Apt-4 label Apt-4 ! voice register dn 5 number 105 allow watch name Apt-5 label Apt-5 ! voice register dn 6 number 106 allow watch name Apt-6 label Apt-6 ! voice register dn 7 number 107 allow watch name Apt-7 label Apt-7 ! voice register dn 8 number 108 allow watch name Apt-8 label Apt-8 ! voice register dn 9 number 109 allow watch name Gate-Security label Gate-Security ! voice register pool 1 id mac 58D5.6E45.E6D5 number 1 dn 1 username a1 password a1 codec g711ulaw ! voice register pool 2 id mac 58D5.6E45.E278 number 1 dn 2 username a2 password a2 codec g711ulaw ! voice register pool 3 id mac 58D5.6E45.DFA3 number 1 dn 3 username a3 password a3 codec g711ulaw ! voice register pool 4 id mac 58D5.6E45.E962 number 1 dn 4 username a4 password a4 codec g711ulaw ! voice register pool 5 id mac 58D5.6E45.E397 number 1 dn 5 username a5 password a5 codec g711ulaw ! voice register pool 6 id mac 58D5.6E45.E515 number 1 dn 6 username a6 password a6 codec g711ulaw ! voice register pool 7 id mac 58D5.6E45.E326 number 1 dn 7 username a7 password a7 codec g711ulaw ! voice register pool 8 id mac 58D5.6E45.E52C number 1 dn 8 username a8 password a8 codec g711ulaw ! voice register pool 9 id mac 58D5.6E45.E479 number 1 dn 9 username gate password gate codec g711ulaw ! ! ! !   Any help will be much appreciated.   Thanks Nooruddin ... View more

Hi, I would like to assign two PSTN numbers to be called from a specific DN. For Example,   DN = 112 should only make calls to following numbers only. +256700400100 +256700400101   Thanks in Advance, Nooruddin ... View more

Hi, Trying to register SIP Softphone through Internet but giving following error. However through Local Network Softphone works fine. Moreover 5060 - 5061 TCP/UDP ports are allowed and forwarded to Cisco router through mikrotik firewall. Please see below messages. Help would be appreciated.   Jun 10 04:57:08.027: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg: Received: REGISTER sip:somecompany.ddns.org SIP/2.0 Via: SIP/2.0/UDP 192.168.8.65:59057;branch=z9hG4bK-524287-1---fa2b413159770f3e;rport Max-Forwards: 70 Contact: <sip:111@192.168.8.65:59057;rinstance=c607bf023235fc0c> To: "sip"<sip:111@somecompany.ddns.org> From: "sip"<sip:111@somecompany.ddns.org>;tag=8879db4c Call-ID: 99142ODk4NDVkN2JkZDRiZWM4YTQxMTE2ZTQyMjJmZTlhMWI CSeq: 1 REGISTER Expires: 3600 Allow: OPTIONS, SUBSCRIBE, NOTIFY, INVITE, ACK, CANCEL, BYE, REFER, INFO User-Agent: X-Lite release 5.6.1 stamp 99142 Content-Length: 0 Jun 10 04:57:08.035: //1918/08844B5492F2/SIP/Msg/ccsipDisplayMsg: Sent: SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.8.65:59057;branch=z9hG4bK-524287-1---fa2b413159770f3e;rport;received=118.27.114.145 From: "sip"<sip:111@somecompany.ddns.org>;tag=8879db4c To: "sip"<sip:111@somecompany.ddns.org> Date: Mon, 10 Jun 2019 04:57:08 GMT Call-ID: 99142ODk4NDVkN2JkZDRiZWM4YTQxMTE2ZTQyMjJmZTlhMWI Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 REGISTER Content-Length: 0 Jun 10 04:57:08.035: //1918/08844B5492F2/SIP/Msg/ccsipDisplayMsg: Sent: SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 192.168.8.65:59057;branch=z9hG4bK-524287-1---fa2b413159770f3e;rport;received=118.27.114.145 From: "sip"<sip:111@somecompany.ddns.org>;tag=8879db4c To: "sip"<sip:111@somecompany.ddns.org>;tag=7BF5DFA0-BEC Date: Mon, 10 Jun 2019 04:57:08 GMT Call-ID: 99142ODk4NDVkN2JkZDRiZWM4YTQxMTE2ZTQyMjJmZTlhMWI Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 REGISTER WWW-Authenticate: Digest realm="",nonce="925C08170C656329",algorithm=MD5,qop="auth" Content-Length: 0 Jun 10 04:57:08.519: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg: Received: REGISTER sip:somecompany.ddns.org SIP/2.0 Via: SIP/2.0/UDP 192.168.8.65:59057;branch=z9hG4bK-524287-1---fa2b413159770f3e;rport Max-Forwards: 70 Contact: <sip:111@192.168.8.65:59057;rinstance=c607bf023235fc0c> To: "sip"<sip:111@somecompany.ddns.org> From: "sip"<sip:111@somecompany.ddns.org>;tag=8879db4c Call-ID: 99142ODk4NDVkN2JkZDRiZWM4YTQxMTE2ZTQyMjJmZTlhMWI CSeq: 1 REGISTER Expires: 3600 Allow: OPTIONS, SUBSCRIBE, NOTIFY, INVITE, ACK, CANCEL, BYE, REFER, INFO User-Agent: X-Lite release 5.6.1 stamp 99142 Content-Length: 0   Thanks in Advance, Nooruddin ... View more

Hi, I have configured PPTP VPN on Cisco 2821 router and PPTP works fine through Windows. But when i try to connect through Android default VPN it gives me following error. also please see attached error i get on Android mobile.   ppp128 PPP: Using AAA Unique Id = 9E ppp128 PPP: Authorization NOT required ppp128 PPP: Using vpn set call direction ppp128 PPP: Treating connection as a callin ppp128 PPP: Session handle[4000080] Session id[128] ppp128 CHAP: O CHALLENGE id 1 len 26 from "R2821" ppp128 CHAP: I RESPONSE id 1 len 26 from "cisco" ppp128 PPP: Sent CHAP LOGIN Request ppp128 PPP: Received LOGIN Response PASS ppp128 PPP AUTHOR: Author Data NOT Available Vi3 CHAP: O SUCCESS id 1 len 4 %LINK-3-UPDOWN: Interface Virtual-Access3, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access3, changed state to up Vi3 PPP: Sending Acct Event[Down] id[9E] Vi3 PPP: Clearing AAA Unique Id = 9E %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access3, changed state to down %LINK-3-UPDOWN: Interface Virtual-Access3, changed state to down     Moreover, MS-CHAP-v2 does not authentication through local AAA default list. Does it only work with Radius?   Following is the configuration done on Cisco 2821 router. aaa new-model ! ! aaa authentication login default local aaa authentication ppp default local   vpdn enable ! vpdn-group 1 ! Default PPTP VPDN group accept-dialin protocol pptp virtual-template 1 l2tp tunnel timeout no-session 15   interface Virtual-Template1 ip unnumbered GigabitEthernet0/0.1 peer default ip address dhcp-pool Data no keepalive ppp encrypt mppe auto ppp authentication chap ms-chap-v2     Thanks in Advance Nooruddin ... View more

Hi, I would like to know that i have a Cisco VoIP setup configured at Office and would like to make calls to local DN-Number from my home or any other place in the world through broadband internet which has dynamic public ip address.   is it possible and what is the configuration?   Thanks in Advance Nooruddin ... View more