Hi there!
We have two cisco 7912 ip phone using SIP firmware behind Cisco PIX firewall. These two phone is configured to register to a SER proxy which is on the public Internet. These two Cisco 7912 ip phones are PATor NAPT to a single IP.
The problem we have is when these two phones call each other, the two party cannot hear each other's voice.
If we replace the PIX firewall with a Cisco router, there is no such problem.
Does anyone encounter this problem before? I am clueless on how to resolve this problem. Any pointers will be much appreciated.
Thank you very much!
Best regards
sekchye
PIX firewalls cant reroute using the same interface, dunno if it helps but is one difference with routers....
----- Original Message ----- From: "sekchye goh" sekchye@gmail.com To: serusers@lists.iptel.org Sent: Monday, December 27, 2004 4:54 AM Subject: [Serusers] problem for Cisco 7912 ip phone behind pix firewall
Hi there!
We have two cisco 7912 ip phone using SIP firmware behind Cisco PIX firewall. These two phone is configured to register to a SER proxy which
is on
the public Internet. These two Cisco 7912 ip phones are PATor NAPT to a single IP.
The problem we have is when these two phones call each other, the two party cannot hear each other's voice.
If we replace the PIX firewall with a Cisco router, there is no such
problem.
Does anyone encounter this problem before? I am clueless on how to resolve this problem. Any pointers will be much appreciated.
Thank you very much!
Best regards
sekchye
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
Disable fixup for sip.
I dont know what the command is. but that usally helps on PIX.
-Atle
* Pepe jlbravo@acotelsa.com [041227 09:09]:
PIX firewalls cant reroute using the same interface, dunno if it helps but is one difference with routers....
----- Original Message ----- From: "sekchye goh" sekchye@gmail.com To: serusers@lists.iptel.org Sent: Monday, December 27, 2004 4:54 AM Subject: [Serusers] problem for Cisco 7912 ip phone behind pix firewall
Hi there!
We have two cisco 7912 ip phone using SIP firmware behind Cisco PIX firewall. These two phone is configured to register to a SER proxy which
is on
the public Internet. These two Cisco 7912 ip phones are PATor NAPT to a single IP.
The problem we have is when these two phones call each other, the two party cannot hear each other's voice.
If we replace the PIX firewall with a Cisco router, there is no such
problem.
Does anyone encounter this problem before? I am clueless on how to resolve this problem. Any pointers will be much appreciated.
Thank you very much!
Best regards
sekchye
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
Thanks Atle and Pepe for your response!! After disabling the following command on PIX, the problem is resolved!
no fixup protocol sip 5060 no fixup protocol sip udp 5060
On Mon, 27 Dec 2004 11:01:26 +0100, Atle Samuelsen clona@camaro.no wrote:
Disable fixup for sip.
I dont know what the command is. but that usally helps on PIX.
-Atle
- Pepe jlbravo@acotelsa.com [041227 09:09]:
PIX firewalls cant reroute using the same interface, dunno if it helps but is one difference with routers....
----- Original Message ----- From: "sekchye goh" sekchye@gmail.com To: serusers@lists.iptel.org Sent: Monday, December 27, 2004 4:54 AM Subject: [Serusers] problem for Cisco 7912 ip phone behind pix firewall
Hi there!
We have two cisco 7912 ip phone using SIP firmware behind Cisco PIX firewall. These two phone is configured to register to a SER proxy which
is on
the public Internet. These two Cisco 7912 ip phones are PATor NAPT to a single IP.
The problem we have is when these two phones call each other, the two party cannot hear each other's voice.
If we replace the PIX firewall with a Cisco router, there is no such
problem.
Does anyone encounter this problem before? I am clueless on how to resolve this problem. Any pointers will be much appreciated.
Thank you very much!
Best regards
sekchye
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
-
Atle Samuelsen -
Pepe -
sekchye goh