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LTE

100 of Questions in LTE

CCNA Certification

CCNA Sample Q & A (1000 + Q &A)

(Network +) Certification

(Network +) Sample Q & A (1000 + Q &A)

Networking

General/Interview Q& A on Networking

Home Networking

General/Interview Q& A on Networking

VOIP, SIP & Asterisk

Q & A on VOIP,Ethereal, SIP & Asterisk

Telecom Test Equipments

Q & A on Telecom Test Equipment

PSTN / Wireline

General / Interview Q & A on PSTN / Wireline

LTE, Wireless, 3G ,Diameter and HSS

General/Interview Q & A on LTE, Wireless, 3G ,Diameter and HSS

Telecom General

Any Q & A in Telecom in General

Top Questions
Friends, Describe Secure storage and distribution of A-Keys?
what is the difference between E1 signal & Ethernet signal ?
How do I monitor SS7 Traffic in spectra2?
Can you tell me about PBGT?
Explain me the difference between a repeater, bridge and router? Relate this to the OSI model.
What is the difference between BRI & PRI ?
Guys what is the purpose of Umbrella Cell Approach in GSM ?
how can we explain media gateway in MSc?
What is GGSN?
What is the difference between Electrical-tilt and Mechanical-tilt of an antenna?
What is BSC?
What is demarc point?
Can any one explain me how sms flow will work using ss7 network ?( from physical layer to application layer)
why cellphone towers are painted in red and white?
Explain SLTA and SLTM messages in MTP3?
Hi guys what is WAP?
wat is the difference betweem MSC & GMSC, & MSS & GCS?
what is EDAp? what is the functions of EDAP?
What is a circuit id?
what is sdh?


What should be the SIP response message for ISUP Invalid message? swathi 06-June-2008 07:32:11 AM Comments Invalid message: ISUP Cause value SIP response ---------------- ------------ 87 user not member of CUG 503 Service unavailable 88 incompatible destination 503 Service unavailable 95 invalid message 503 Service unavailable Posted by sagitraz Invalid message: ISUP Cause value SIP response ---------------- ------------ 87 user not member of CUG 503 Service unavailable 88 incompatible destination 503 Service unavailable 95 invalid message 503 Service unavailable Posted by sagitraz This is the translation table for invalid messages Invalid message ISUP Cause value SIP response ---------------- ------------ 87 user not member of CUG 503 Service unavailable 88 incompatible destination 503 Service unavailable 95 invalid message 503 Service unavailable Posted by avloginov

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