Hi everybody
Anyone tried to connect AudioCodes MP124 as ATA with NEC SV8100?
MP124 is configured to use SV8100 as a registrar and a proxy.
All 24 ports are successfully registered on PBX, but only one phone can do o/g calls and receive i/c calls.
23 ports left get a "503 service unavailable" error. All INVITE's are 100% identical (except for RTP port, of course).
Is something special should be configured with SV8100 in this case?
UPDATE:
Found the solution in a documentation.
"
IP Duplication Allowed Groups
By default the SV8100 allows one SIP registration per IP address. In certain circumstances multiple
extension numbers may be required to be registered via the same IP address, e.g. Cisco ATA has two
extension connections but only one IP address. With this scenario the second registration from the same
IP address would overwrite the first registration. To overcome this limitation it is necessary to put the SIP
extensions into a particular IP Duplication Allowed Group. This allows multiple registrations from a single
IP address and also allows the SIP registration to be overwritten by another IP address. There are 10
groups available.
e.g. If a Cisco ATA is to have extensions 250 and 251 registered from the same IP address, put extension
250 and 251 into the same ‘IP Duplication Allowed Group’ in Wizard– Advanced Items/IP SIP/SIP
Terminal Options/SIP Terminal Setup (PRG15-05-18).
Anyone tried to connect AudioCodes MP124 as ATA with NEC SV8100?
MP124 is configured to use SV8100 as a registrar and a proxy.
All 24 ports are successfully registered on PBX, but only one phone can do o/g calls and receive i/c calls.
23 ports left get a "503 service unavailable" error. All INVITE's are 100% identical (except for RTP port, of course).
Is something special should be configured with SV8100 in this case?
UPDATE:
Found the solution in a documentation.
"
IP Duplication Allowed Groups
By default the SV8100 allows one SIP registration per IP address. In certain circumstances multiple
extension numbers may be required to be registered via the same IP address, e.g. Cisco ATA has two
extension connections but only one IP address. With this scenario the second registration from the same
IP address would overwrite the first registration. To overcome this limitation it is necessary to put the SIP
extensions into a particular IP Duplication Allowed Group. This allows multiple registrations from a single
IP address and also allows the SIP registration to be overwritten by another IP address. There are 10
groups available.
e.g. If a Cisco ATA is to have extensions 250 and 251 registered from the same IP address, put extension
250 and 251 into the same ‘IP Duplication Allowed Group’ in Wizard– Advanced Items/IP SIP/SIP
Terminal Options/SIP Terminal Setup (PRG15-05-18).